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rfc2366

Network Working Group C. Chung
Request for Comments: 2366 SAIC
Category: Standards Track M. Greene
Independent Contractor
(Editor)
July 1998
Definitions of Managed Objects for
Multicast over UNI 3.0/3.1 based ATM Networks
Status of this Memo
This document specifies an Internet standards track protocol for the
Internet community, and requests discussion and suggestions for
improvements. Please refer to the current edition of the "Internet
Official Protocol Standards" (STD 1) for the standardization state
and status of this protocol. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (1998). All Rights Reserved.
Abstract
This memo defines a portion of the Management Information Base (MIB)
for use with network management protocols in the Internet community.
In particular, it describes managed objects for IP hosts and routers
that use a Multicast Address Resolution Server (MARS) to support IP
multicast over ATM, as described in 'Support for Multicast over UNI
3.0/3.1 based ATM Networks' [1].
This memo specifies a MIB module in a manner that is both compliant
to the SNMPv2 SMI, and semantically identical to the peer SNMPv1
definitions.
This memo does not specify a standard for the Internet community.
Table of Contents
1 The SNMP Network Management Framework ........................ 2
1.1 Object Definitions ......................................... 2
2 Overview ..................................................... 3
2.1 The MARS Client Group ...................................... 4
2.2 The MARS Server Group ...................................... 4
2.3 The MARS Multicast Server Group ............................ 5
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RFC 2366 Multicast MIB July 1998
3 IP over ATM Multicast Address Resolution Server MIB
Definitions ............................................... 6
4 Acknowledgments ..............................................73
5 References ...................................................73
6 Security Considerations ......................................74
7 Authors' Addresses ...........................................75
8 Full Copyright Statement .....................................76
1. The SNMP Network Management Framework
The SNMP Network Management Framework presently consists of these
components. They are:
o the SMI, described in RFC 1902 [2] - the mechanisms used for
describing and naming objects for the purpose of ma

nagement.
o the Textual Conventions, described in RFC 1903 [3] for SNMPv2.
o the Conformance Statements, described in RFC 1904 [4] for
SNMPv2.
o the Simple Network Management Protocol, described in
RFC 1157 [5].
o the Protocol Operations, described in RFC 1905 [6] for
SNMPv2.
o the MIB-II, STD 17, RFC 1213 [7] - the core set of managed
objects for the Internet suite of protocols for SNMPv2.
The Framework permits new objects to be defined for the purpose of
experimentation and evaluation.
1.1. Object Definitions
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the subset of Abstract Syntax Notation One (ASN.1)
defined in the SMI. In particular, each object type is named by an
OBJECT IDENTIFIER, an administratively assigned name. The object
type together with an object instance serves to uniquely identify a
specific instantiation of the object. For human convenience, we
often use a textual string, termed the descriptor, to also refer to
the object type.
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RFC 2366 Multicast MIB July 1998
2. Overview
This MARS MIB is designed to define managed objects that can be used
to manage the MARS clients, servers, and the multicast servers (MCS),
as described in the RFC2022[1]. The MIB is supposed to be used on a
system where one or more MARS clients are running, or where one or
more MARS servers are running, or where one or more MARS multicast
servers are running.
An understanding of MARS, as defined in [1] is assumed in this MIB
module definition. However, the following terms are used frequently
and are included here for reference:
Multicast Group
A group of endpoints that communicate with each other such that
packets sent from one endpoint are received by all other members of
the multicast group.
Multicast Address Resolution Server (MARS)
A server that distributes multicast group membership information to
endpoints.
Client/Endpoint
An ATM-attached host or router that registers with a MARS and that is
a member of one or more multicast groups. An endpoint may establish
ATM Virtual Channels (VCs) to the other group members or may make use
of a Multicast Server.
Cluster
The set of clients managed by a MARS.
Multicast Server (MCS)
A server that sets up ATM Virtual Channels (VCs) between endpoints in
a multicast group and to which the endpoints forward data traffic for
transmission on their behalf.
The MIB is broken down into three major groups: a MARS client group,
MARS (server) group, and MARS Multicast Server (MCS) Group.
Chung & Greene Standards Track [Page 3]

RFC 2366 Multic

ast MIB July 1998
2.1. The MARS Client Group
This client group defines a collection of objects required to be
implemented in a MIB for the management of MARS clients. It contains
the following tables:
o MARS Client Table
Information about a client such as its ATM address, the ATM address
of its default MARS, registration status, and timers.
o MARS Client Multicast Group Table
A list of IP multicast address blocks associated with a MARS client.
o MARS Client Backup MARS Group Table
A list of backup MARS's associated with a MARS client.
o MARS Client VC Table
Information about VCs opened by a client.
o MARS Client Statistics Table
Statistics collected by a MARS client.
2.2. The MARS Server Group
This MARS server group defines a collection of objects required to be
implemented in a MIB for the management of MARS servers. It contains
the following tables:
o MARS Table
Information about a MARS such as its ATM address, its status and
timers.
o MARS Multicast Group Table
A list of IP multicast address blocks associated with a MARS.
o MARS VC Table
Information about VCs opened by a MARS.
o MARS Registered Client Table
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RFC 2366 Multicast MIB July 1998
A list of clients registered with a MARS.
o MARS Registered Multicast Server Table
A list of MCSs registered with a MARS.
o MARS Statistics Table
Statistics collected by a MARS.
o MARS Host Map Table
Mappings between multicast groups and clients maintained by a MARS.
o MARS Server Map Table
Mappings between multicast groups and MCSs maintained by a MARS.
2.3. The MARS Multicast Server Group
This MARS multicast server group defines a collection of objects
required to be implemented in a MIB for the management of MARS
multicast servers. It contains the following tables:
This group contains the following tables:
o MARS Multicast Server Table
Information about a MCS, such as its ATM address, default MARS ATM
address, and registration state.
o MARS MCS Multicast Group Table
A list of IP multicast address blocks associated with a MARS MCS.
o MARS MCS Backup Mars Group Table
A list of backup MARS's associated with a MARS MCS.
o MARS Multicast Server VC Table
Information about VCs opened by a MCS.
o MARS Multicast Server Statistics Table
Statistics collected by a MCS.
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RFC 2366 Multicast MIB July 1998
3. IP Over ATM Multicast Address Resolution Server MIB Definitions
IPATM-IPMC-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-COMPLIANCE, NOTIFICATION-GROUP, OBJECT-GROUP
FROM SNMPv2-CONF
snmp

Modules, MODULE-IDENTITY, NOTIFICATION-TYPE, Counter32,
Integer32, Unsigned32, OBJECT-TYPE, IpAddress
FROM SNMPv2-SMI
AtmAddr
FROM ATM-TC-MIB
TruthValue, RowStatus
FROM SNMPv2-TC
ipAdEntAddr
FROM RFC1213-MIB
InterfaceIndex
FROM IF-MIB;
marsMIB MODULE-IDENTITY
LAST-UPDATED "9804150145Z" -- 15 April 1998
ORGANIZATION "Internetworking Over NBMA (ion) Working Group"
CONTACT-INFO
" Chris Chung
Postal: SAIC
1710 Goodridge Drive
Mail Stop 1-4-7
McLean, VA 22102
Tel: +1 703 448 6485
Fax: +1 703 356 2160
E-mail: cchung@https://www.wendangku.net/doc/845445755.html,
Editor: Maria Greene
Postal: Independent Contractor
E-mail: maria@https://www.wendangku.net/doc/845445755.html,
"
DESCRIPTION
"This module defines a portion of the managed information
base (MIB) for managing classical IP multicast address
resolution server (MARS) and related entities as
described in the RFC2022. This MIB is meant to be
used in conjunction with the ATM-MIB (RFC1695),
MIB-II (RFC1213), and optionally the IF-MIB (RFC1573)."
::= { snmpModules 17 }
--***************************************************************
-- IP ATM MARS Client Object Definitions
--***************************************************************
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RFC 2366 Multicast MIB July 1998
marsClientObjects OBJECT IDENTIFIER ::= { marsMIB 1 }
marsClientTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsClientEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The objects defined in this table are used for
the management of MARS clients, ATM attached
endpoints."
::= { marsClientObjects 1 }
marsClientEntry OBJECT-TYPE
SYNTAX MarsClientEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry contains a MARS client and its associated
attributes. An entry in the marsClientTable has
a corresponding entry in the ipAddrTable defined in
RFC1213. Association between the ipAddrTable and
the marsClientTable is made through the index,
ipAdEntAddr."
INDEX { ipAdEntAddr, marsClientIndex }
::= { marsClientTable 1 }
MarsClientEntry ::=
SEQUENCE {
marsClientIndex Integer32,
marsClientAddr AtmAddr,
marsClientDefaultMarsAddr AtmAddr,
marsClientHsn Unsigned32,
marsClientRegistration INTEGER,
marsClientCmi INTEGER,

marsClientDefaultMtu INTEGER,
marsClientFailureTimer INTEGER,
marsClientRetranDelayTimer INTEGER,
marsClientRdmMulReqAddRetrTimer INTEGER,
marsClientRdmVcRevalidateTimer INTEGER,
marsClientJoinLeaveRetrInterval INTEGER,
marsClientJoinLeaveRetrLimit INTEGER,
marsClientRegWithMarsRdmTimer INTEGER,
marsClientForceWaitTimer INTEGER,
marsClientLmtToMissRedirMapTimer INTEGER,
marsClientIdleTimer INTEGER,
marsClientRowStatus RowStatus
}
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RFC 2366 Multicast MIB July 1998
marsClientIndex OBJECT-TYPE
SYNTAX Integer32(1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The auxiliary variable used to identify instances of
the columnar objects in the MARS MarsClientTable."
::= { marsClientEntry 1 }
marsClientAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ATM address associated with the ATM Client."
::= { marsClientEntry 2 }
marsClientDefaultMarsAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The default MARS ATM address which is needed to
setup the initial signalling path between a MARS
client and its associated MARS."
::= { marsClientEntry 3 }
marsClientHsn OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The cluster membership own 32 bit Host Sequence
Number. When a new cluster member starts up, it is
initialized to zero. When the cluster member sends
the MARS_JOIN to register, the HSN will be correctly
set to the current cluster sequence number (CSN) when
the Client receives the copy of its MARS_JOIN from
the MARS. It is is used to track the MARS sequence
number."
::= { marsClientEntry 4 }
marsClientRegistration OBJECT-TYPE
SYNTAX INTEGER {
notRegistered (1),
registering (2),
registered (3),
reRegisteringFault (4),
Chung & Greene Standards Track [Page 8]

RFC 2366 Multicast MIB July 1998
reRegisteringRedirMap (5)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An indication with regards to the registration
status of this client. The registration codes
of 'notRegistered (1)', 'regi

stered (2)', and
registered (3) are self-explanatory. The
'reRegisteringFault (4)' indicates the client is
in the process of re-registering with a MARS due
to some fault conditions. The 'reRegisteringRedMap
(5)' status code shows that client is re-registering
because it has received a MARS_REDIRECT_MAP message
and was told to register with a different MARS from
the current MARS."
::= { marsClientEntry 5 }
marsClientCmi OBJECT-TYPE
SYNTAX INTEGER (0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"16 bit Cluster member identifier (CMI) assigned by the
MARS which uniquely identifies each endpoint attached
to the cluster. The value becomes valid after the
'marsClientRegistration' is set to the value
of 'registered (1)'."
::= { marsClientEntry 6 }
marsClientDefaultMtu OBJECT-TYPE
SYNTAX INTEGER (1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The default maximum transmission unit (MTU) used for
this cluster. Note that the actual size used for a
VC between two members of the cluster may be negotiated
during connection setup and may be different than this
value. Default value = 9180 bytes."
DEFVAL { 9180 }
::= { marsClientEntry 7 }
marsClientFailureTimer OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
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RFC 2366 Multicast MIB July 1998
DESCRIPTION
"A timer used to flag the failure of last MARS_MULTI
to arrive. Default value = 10 seconds (recommended)."
DEFVAL { 10 }
::= { marsClientEntry 8 }
marsClientRetranDelayTimer OBJECT-TYPE
SYNTAX INTEGER (5..10)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The delay timer for sending out new MARS_REQUEST
for the group after the client learned that there
is no other group in the cluster. The timer must
be set between 5 and 10 seconds inclusive."
::= { marsClientEntry 9 }
marsClientRdmMulReqAddRetrTimer OBJECT-TYPE
SYNTAX INTEGER (5..10)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The initial random L_MULTI_RQ/ADD retransmit timer
which can be set between 5 and 10 seconds inclusive."
::= { marsClientEntry 10 }
marsClientRdmVcRevalidateTimer OBJECT-TYPE
SYNTAX INTEGER (1..10)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The random time to set VC_revalidat

e flag. The
timer value ranges between 1 and 10 seconds
inclusive."
::= { marsClientEntry 11 }
marsClientJoinLeaveRetrInterval OBJECT-TYPE
SYNTAX INTEGER(5..2147483647)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"MARS_JOIN/LEAVE retransmit interval. The minimum
and recommended values are 5 and 10 seconds,
respectively."
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RFC 2366 Multicast MIB July 1998
DEFVAL { 10 }
::= { marsClientEntry 12 }
marsClientJoinLeaveRetrLimit OBJECT-TYPE
SYNTAX INTEGER (0..5)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"MARS_JOIN/LEAVE retransmit limit. The maximum
value is 5."
::= { marsClientEntry 13 }
marsClientRegWithMarsRdmTimer OBJECT-TYPE
SYNTAX INTEGER (1..10)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Random time to register with MARS."
::= { marsClientEntry 14 }
marsClientForceWaitTimer OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
UNITS "minutes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Force wait if MARS re-registration is looping.
The minimum value is 1 minute."
::= { marsClientEntry 15 }
marsClientLmtToMissRedirMapTimer OBJECT-TYPE
SYNTAX INTEGER (1..4)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Timer limit for client to miss MARS_REDIRECT_MAPS."
::= { marsClientEntry 16 }
marsClientIdleTimer OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
UNITS "minutes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
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RFC 2366 Multicast MIB July 1998
"The configurable inactivity timer associated with a
client. When a VC is created at this client, it gets
the idle timer value from this configurable timer.
The minimum suggested value is 1 minute and the
recommended default value is 20 minutes."
DEFVAL { 20 }
::= { marsClientEntry 17 }
marsClientRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create, delete or modify a
row in this table.
A row cannot be made 'active' until instances of
all corresponding columns in the row of this table
are appropriately configured and until the agent
has also created a corresponding row in the
marsClientStatTable.
When this object has a value

of 'active', the
following columnar objects can not be modified:
marsClientDefaultMarsAddr,
marsClientHsn,
marsClientRegstration,
marsClientCmi,
marsClientDefaultMtu
while other objects in this conceptual row can be
modified irrespective of the value of this object.
Deletion of this row is allowed regardless of
whether or not a row in any associated tables
(i.e., marsClientVcTable) still exists or is in
use. Once this row is deleted, it is recommended
that the agent or the SNMP management station
(if possible) through the set command deletes
any stale rows that are associated with this
row."
::= { marsClientEntry 18 }
--****************************************************************
-- IP ATM MARS Client Multicast Group Address Object Definitions
--****************************************************************
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RFC 2366 Multicast MIB July 1998
marsClientMcGrpTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsClientMcGrpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of IP multicast group address
blocks associated with a MARS client. Entries in this
table are used by the client that needs to receive or
transmit packets from/to the specified range of
multicast addresses.
Each row can be created or deleted via configuration."
::= { marsClientObjects 2 }
marsClientMcGrpEntry OBJECT-TYPE
SYNTAX MarsClientMcGrpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry represents a consecutive block of multicast
group addresses."
INDEX { ipAdEntAddr,
marsClientIndex,
marsClientMcMinGrpAddr,
marsClientMcMaxGrpAddr }
::= { marsClientMcGrpTable 1 }
MarsClientMcGrpEntry ::=
SEQUENCE {
marsClientMcMinGrpAddr IpAddress,
marsClientMcMaxGrpAddr IpAddress,
marsClientMcGrpRowStatus RowStatus
}
marsClientMcMinGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Minimum multicast group address - the min and max
multicast forms multi-group block. If the MinGrpAddr
and MaxGrpAddr are the same, it indicates that this
block contains a single group address."
::= { marsClientMcGrpEntry 1 }
marsClientMcMaxGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
Chung & Greene Standards Track

[Page 13]

RFC 2366 Multicast MIB July 1998
DESCRIPTION
"Maximum multicast group address - the min and max
multicast forms a multi-group block. If the MinGrpAddr
and MaxGrpAddr are the same, it indicates that this
block contains a single group address."
::= { marsClientMcGrpEntry 2 }
marsClientMcGrpRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create or delete a row in this
table.
Since other objects in this row are not-accessible
'index-objects', the value of this object has no
effect on whether those objects in this conceptual
row can be modified."
::= { marsClientMcGrpEntry 3 }
--****************************************************************
-- IP ATM MARS Client Backup MARS Object Definitions
--****************************************************************
marsClientBackupMarsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsClientBackupMarsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of backup MARS addresses that
a client can connect to in case of failure for connecting
to the primary server. The list of addresses is in
descending order of preference. It should be noted that
the backup list provided by the MARS to the client via
the MARS_REDIRECT_MAP message has a higher preference than
addresses that are manually configured into the client.
When such a list is received from the MARS, this information
should be inserted at the top of the list.
Each row can be created or deleted via configuration."
::= { marsClientObjects 3 }
marsClientBackupMarsEntry OBJECT-TYPE
SYNTAX MarsClientBackupMarsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry represents an ATM address of a backup MARS."
Chung & Greene Standards Track [Page 14]

RFC 2366 Multicast MIB July 1998
INDEX { ipAdEntAddr,
marsClientIndex,
marsClientBackupMarsPriority,
marsClientBackupMarsAddr }
::= { marsClientBackupMarsTable 1 }
MarsClientBackupMarsEntry ::=
SEQUENCE {
marsClientBackupMarsPriority Unsigned32,
marsClientBackupMarsAddr AtmAddr,
marsClientBackupMarsRowStatus RowStatus
}
marsClientBackupMarsPriority OBJECT-TYPE
SYNTAX Unsigned32(0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The priority associated with a backup MARS. A lower
priority value inidcate

s a higher preference."
::= { marsClientBackupMarsEntry 1 }
marsClientBackupMarsAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ATM address associated with a backup MARS."
::= { marsClientBackupMarsEntry 2 }
marsClientBackupMarsRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create or delete a row in this
table.
Since other objects in this row are not-accessible
'index-objects', the value of this object has no effect
on whether those objects in this conceptual row can be
modified."
::= { marsClientBackupMarsEntry 3 }
--***************************************************************
-- IP ATM MARS Client VC Object Definition Table
--***************************************************************
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RFC 2366 Multicast MIB July 1998
marsClientVcTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsClientVcEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains information about open virtual
circuits (VCs) that a client has. For point to point
circuit, each entry represents a single VC connection
between this client ATM address to another party ATM
address. In the case of point to multipoint connection
where a single source address is associated with
multiple destinations, several entries are used to
represent the relationship. An example of point to
multi-point VC represented in a table is shown below.
Client VPI/VCI Grp Addr1/Addr2 Part Addr
1 0,1 g1,g2 p1
1 0,1 g1,g2 p2
1 0,1 g1,g2 p3
Note: This table assumes the IP multicast address
groups (min, max) defined in each entry are
always consecutive. In the case of that a
client receives a JOIN/LEAVE with
mars$flag.punched set, each pair of the IP
groups will first be broken into several
pairs of consecutive IP groups before each
entry row corresponding to a pair of IP group
is created."
::= { marsClientObjects 4 }
marsClientVcEntry OBJECT-TYPE
SYNTAX MarsClientVcEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The objects contained in the entry are VC related
attributes such as VC signalling type, control VC
type, idle timer,

negotiated MTU size, etc."
INDEX { ipAdEntAddr,
marsClientIndex,
marsClientVcVpi,
marsClientVcVci,
marsClientVcMinGrpAddr,
marsClientVcMaxGrpAddr,
marsClientVcPartyAddr }
::= { marsClientVcTable 1 }
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RFC 2366 Multicast MIB July 1998
MarsClientVcEntry ::=
SEQUENCE {
marsClientVcVpi INTEGER,
marsClientVcVci INTEGER,
marsClientVcMinGrpAddr IpAddress,
marsClientVcMaxGrpAddr IpAddress,
marsClientVcPartyAddr AtmAddr,
marsClientVcPartyAddrType INTEGER,
marsClientVcType INTEGER,
marsClientVcCtrlType INTEGER,
marsClientVcIdleTimer INTEGER,
marsClientVcRevalidate TruthValue,
marsClientVcEncapsType INTEGER,
marsClientVcNegotiatedMtu INTEGER,
marsClientVcRowStatus RowStatus
}
marsClientVcVpi OBJECT-TYPE
SYNTAX INTEGER (0..4095)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The value of virtual path identifier (VPI). Since
a VPI can be numbered 0, this sub-index can take
a value of 0."
::= { marsClientVcEntry 1 }
marsClientVcVci OBJECT-TYPE
SYNTAX INTEGER (0..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The value of virtual circuit identifier (VCI). Since
a VCI can be numbered 0, this sub-index can take
a value of 0."
::= { marsClientVcEntry 2 }
marsClientVcMinGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Minimum IP multicast group address - the min and
max multicast forms a multi-group consecutive
block which is associated with a table entry.
if the MinGrpAddr and MaxGrpAddr are the same, it
indicates that the size of multi-group block is 1,
a single IP group."
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RFC 2366 Multicast MIB July 1998
::= { marsClientVcEntry 3 }
marsClientVcMaxGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Maximum IP multicast group address - the min and
max multicast forms a multi-group consecutive
block which is associated with a table entry.
if the MinGrpAddr and MaxGrpAddr are the same, it
indicates that the size of multi-group block is 1,
a single IP group."
::= { marsClientVcEntry 4 }
marsClientVcPartyAddr OBJECT-TYPE
S

YNTAX AtmAddr
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An ATM party address in which this VC is linked.
The party type is identified by the
marsClientVcPartyAddrType."
::= { marsClientVcEntry 5 }
marsClientVcPartyAddrType OBJECT-TYPE
SYNTAX INTEGER {
called (1),
calling (2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The party type is associated with the party address.
The 'called (1)' indicates that the party address is
a destination address which implies that VC is
originated from this client. The 'calling (2)'
indicates the VC was initiated externally to this
client. In this case, the party address is the
source address."
::= { marsClientVcEntry 6 }
marsClientVcType OBJECT-TYPE
SYNTAX INTEGER {
pvc (1),
svc (2)
Chung & Greene Standards Track [Page 18]

RFC 2366 Multicast MIB July 1998
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Circuit Connection type: permanent virtual circuit or
switched virtual circuit."
::= { marsClientVcEntry 7 }
marsClientVcCtrlType OBJECT-TYPE
SYNTAX INTEGER {
pointToPointVC (1),
clusterControlVC (2),
pointToMultiPointVC (3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Control VC type used to specify a particular connection.
pointToPointVC (1):
used by the ATM Clients for the registration and
queries. This VC or the initial signalling path
is set up from the source Client to a MARS. It is
bi-directional.
clusterControlVC (2):
used by a MARS to issue asynchronous updates to an
ATM Client. This VC is established from the MARS
to the ATM Client.
pointToMultiPointVC (3):
used by the client to transfer multicast data
packets from layer 3. This VC is established
from the source ATM Client to a destination ATM
endpoint which can be a multicast group member
or an MCS. The destination endpoint was obtained
from the MARS."
::= { marsClientVcEntry 8 }
marsClientVcIdleTimer OBJECT-TYPE
SYNTAX INTEGER (1..2147483647)
UNITS "minutes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The idle timer associated with this VC. The minimum
suggested value is 1 minute and the recommended
default value is 20 minutes."
DEFVAL { 20 }
::= { marsClientVcEntry 9 }

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RFC 2366 Multicast MIB July 1998
marsClientVcRevalidate OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A flag associated with an open and active multipoint
VC. It is checked every time a packet is queued for
transmission on that VC. The object has the value of
true (1) if revalidate is required and the value
false (2) otherwise."
::= { marsClientVcEntry 10 }
marsClientVcEncapsType OBJECT-TYPE
SYNTAX INTEGER {
other (1),
llcSnap (2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The encapsulation type used when communicating over
this VC."
::= { marsClientVcEntry 11 }
marsClientVcNegotiatedMtu OBJECT-TYPE
SYNTAX INTEGER (1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The negotiated MTU when communicating over this VC."
::= { marsClientVcEntry 12 }
marsClientVcRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create, delete or modify a
row in this table.
A row cannot be made 'active' until instances of
all corresponding columns in the row of this table
are appropriately configured.
While objects: marsClientVcIdleTimer and
marsClientVcRevalidate in this conceptual
row can be modified irrespective of the value
of this object, all other objects in the row can
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RFC 2366 Multicast MIB July 1998
not be modified when this object has a value
of 'active'.
It is possible for an SNMP management station
to set the row to 'notInService' and modify
the entry and then set it back to 'active'
with the following exception. That is, rows
for which the corresponding instance of
marsClientVcType has a value of 'svc' can not
be modified or deleted."
::= { marsClientVcEntry 13 }
--***************************************************************
-- IP ATM MARS Client Statistic Object Definition Table
--***************************************************************
marsClientStatTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsClientStatEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The table contains statistics collected at MARS
clients."
::= { marsClientObjects 5 }
marsClientStatEntry OBJECT-TYPE
SYNTAX MarsClientStatEntry

MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry contains statistics collected at one MARS
client."
INDEX { ipAdEntAddr, marsClientIndex }
::= { marsClientStatTable 1 }
MarsClientStatEntry ::=
SEQUENCE {
marsClientStatTxReqMsgs Counter32,
marsClientStatTxJoinMsgs Counter32,
marsClientStatTxLeaveMsgs Counter32,
marsClientStatTxGrpLstReqMsgs Counter32,
marsClientStatRxJoinMsgs Counter32,
marsClientStatRxLeaveMsgs Counter32,
marsClientStatRxMultiMsgs Counter32,
marsClientStatRxNakMsgs Counter32,
marsClientStatRxMigrateMsgs Counter32,
marsClientStatRxGrpLstRplyMsgs Counter32,
Chung & Greene Standards Track [Page 21]

RFC 2366 Multicast MIB July 1998
marsClientStatFailMultiMsgs Counter32
}
marsClientStatTxReqMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_REQUEST messages transmitted
from a client."
::= { marsClientStatEntry 1 }
marsClientStatTxJoinMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_JOIN messages transmitted from
a client."
::= { marsClientStatEntry 2 }
marsClientStatTxLeaveMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_LEAVE messages transmitted from
a client."
::= { marsClientStatEntry 3 }
marsClientStatTxGrpLstReqMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_GROUPLIST_REQUEST messages
transmitted from a client."
::= { marsClientStatEntry 4 }
marsClientStatRxJoinMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_JOIN messages received by
a client."
::= { marsClientStatEntry 5 }
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RFC 2366 Multicast MIB July 1998
marsClientStatRxLeaveMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_LEAVE messages received by
a client."
::= { marsClientStatEntry 6 }
marsClientStatRxMultiMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_MULTI messages received by
a client."
::= { marsClient

StatEntry 7 }
marsClientStatRxNakMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_NAK messages received by
a client."
::= { marsClientStatEntry 8 }
marsClientStatRxMigrateMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_MIGRATE messages received by
a client."
::= { marsClientStatEntry 9 }
marsClientStatRxGrpLstRplyMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Total number of MARS_GROUPLIST_REPLY messages
received by a client."
::= { marsClientStatEntry 10 }
marsClientStatFailMultiMsgs OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
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RFC 2366 Multicast MIB July 1998
STATUS current
DESCRIPTION
"Total number of timeouts occurred indicating
failure of the last MARS_MULTI to arrive."
::= { marsClientStatEntry 11 }
--***************************************************************
-- IP ATM MARS Object Definitions
--***************************************************************
marsObjects OBJECT IDENTIFIER ::= { marsMIB 2 }
marsTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The objects defined in this table are used for the
management of MARS servers."
::= { marsObjects 1 }
marsEntry OBJECT-TYPE
SYNTAX MarsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry contains a MARS and its associated
attributes."
INDEX { marsIndex, marsIfIndex }
::= { marsTable 1 }
MarsEntry ::=
SEQUENCE {
marsIndex Integer32,
marsIfIndex InterfaceIndex,
marsAddr AtmAddr,
marsLocal TruthValue,
marsServStatus INTEGER,
marsServType INTEGER,
marsServPriority Unsigned32,
marsRedirMapMsgTimer INTEGER,
marsCsn Unsigned32,
marsSsn Unsigned32,
marsRowStatus RowStatus
}
marsIndex OBJECT-TYPE
SYNTAX Integer32(1..65535)
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RFC 2366 Multicast MIB July 1998
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The auxiliary variable used to identify instances of
the columnar objects in the MARS table."
::= { marsEntry 1 }

marsIfIndex OBJECT-TYPE
SYNTAX InterfaceIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The ifIndex of the interface that the MARS is
associated with."
::= { marsEntry 2 }
marsAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The ATM address associated with the MARS."
::= { marsEntry 3 }
marsLocal OBJECT-TYPE
SYNTAX TruthValue
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A flag associated with a MARS entry. The object has
the value of true (1) if the MARS whose interface
is local to the machine that implements this MIB;
otherwise the object has the value of false (2)."
::= { marsEntry 4 }
marsServStatus OBJECT-TYPE
SYNTAX INTEGER {
active (1),
inactive (2),
faulted (3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The current status of MARS."
::= { marsEntry 5 }
marsServType OBJECT-TYPE
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RFC 2366 Multicast MIB July 1998
SYNTAX INTEGER {
primary (1),
backup (2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Types of MARS servers: primary or backup."
::= { marsEntry 6 }
marsServPriority OBJECT-TYPE
SYNTAX Unsigned32(0..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Priority associated with a backup MARS server.
A backup MARS server with lower priority value
indicates a higher preference than other backup
MARS servers to be used as the MARS server when
the primary server fails."
::= { marsEntry 7 }
marsRedirMapMsgTimer OBJECT-TYPE
SYNTAX INTEGER (1..2)
UNITS "minutes"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Periodic interval on which a multi-part
MARS_REDIRECT_MAP is sent from this MARS."
DEFVAL { 1 }
::= { marsEntry 8 }
marsCsn OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Current cluster sequence number (CSN) which is global
within the context of a given protocol. The CSN is
incremented by the MARS on every transmission of a
message on ClusterControlVC. A cluster member uses
the CSN to track the message loss on ClusterControlVC
or to monitor a membership change."
::= { marsEntry 9 }
marsSsn OBJECT-TYPE
SYNTAX Unsigned32
Chung & Greene Standards Track [Page 26]

RFC 2366

Multicast MIB July 1998
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Current server sequence number (SSN) which is global
within the context of a given protocol. The SSN is
incremented by the MARS on every transmission of a
message on ServerControlVC. A MCS uses the SSN to
track the message loss on ServerControlVC or to
monitor a membership change."
::= { marsEntry 10 }
marsRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create, delete or modify a
row in this table.
A row cannot be made 'active' until instances of
all corresponding columns in the row of this table
are appropriately configured and until the agent
has also created a corresponding row in the
marsStatTable.
When this object has a value of 'active', the
following columnar objects can not be modified:
marsAddr,
marsAddrLocal,
marsServStatus,
marsServType,
marsCsn,
marsSsn
while other objects in this conceptual row can be
modified irrespective of the value of this object.
Deletion of this row is allowed regardless of
whether or not a row in any associated tables
(i.e., marsVcTable) still exists or is in use.
Once this row is deleted, it is recommended that
the agent or the SNMP management station (if
possible) through the set command deletes any
stale rows that are associated with this row."
::= { marsEntry 11 }
Chung & Greene Standards Track [Page 27]

RFC 2366 Multicast MIB July 1998
--****************************************************************
-- IP ATM MARS Multicast Group Address Object Definitions
--****************************************************************
marsMcGrpTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsMcGrpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table contains a list of IP multicast address
blocks associated with a MARS. Entries in this table
are used by the MARS host map table and the server map
table. They should be created prior to being referenced
as indices by those tables.
Each row can be created or deleted via configuration."
::= { marsObjects 2 }
marsMcGrpEntry OBJECT-TYPE
SYNTAX MarsMcGrpEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry represents a consecutive block of multicast
group addresses."
INDEX { marsIndex,

marsIfIndex,
marsMcMinGrpAddr,
marsMcMaxGrpAddr }
::= { marsMcGrpTable 1 }
MarsMcGrpEntry ::=
SEQUENCE {
marsMcMinGrpAddr IpAddress,
marsMcMaxGrpAddr IpAddress,
marsMcGrpAddrUsage INTEGER,
marsMcGrpRxLayer3GrpSets Counter32,
marsMcGrpRxLayer3GrpResets Counter32,
marsMcGrpRowStatus RowStatus
}
marsMcMinGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Minimum multicast group address - the min and max
multicast forms multi-group block. If the MinGrpAddr
and MaxGrpAddr are the same, it indicates that this
Chung & Greene Standards Track [Page 28]

RFC 2366 Multicast MIB July 1998
block contains a single group address."
::= { marsMcGrpEntry 1 }
marsMcMaxGrpAddr OBJECT-TYPE
SYNTAX IpAddress
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Maximum multicast group address - the min and max
multicast forms a multi-group block. If The
MinGrpAddr and MaxGrpAddr are the same, it indicates
that this block contains a single group address."
::= { marsMcGrpEntry 2 }
marsMcGrpAddrUsage OBJECT-TYPE
SYNTAX INTEGER {
hostMap (1),
serverMap (2),
hostServerMap (3)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Usage of the multicast address block. The hostMap (1)
indicates that the address block is only used in the
MARS host map table. The serverMap (2) indicates
that the address block is only used in the MARS
server map table. The hostServerMap (3) indicates
that the address block is used in both the host map
and the server map tables."
::= { marsMcGrpEntry 3 }
marsMcGrpRxLayer3GrpSets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of MARS_JOIN messages received with
mars$https://www.wendangku.net/doc/845445755.html,yer3grp flag set."
::= { marsMcGrpEntry 4 }
marsMcGrpRxLayer3GrpResets OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Number of MARS_JOIN messages received with
mars$https://www.wendangku.net/doc/845445755.html,yer3grp flag reset."
Chung & Greene Standards Track [Page 29]

RFC 2366 Multicast MIB July 1998
::= { marsMcGrpEntry 5 }
marsMcGrpRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create, delete or m

odify a
row in this table.
The value of this object has no effect on whether
other objects in this conceptual row can be modified."
::= { marsMcGrpEntry 6 }
--***************************************************************
-- IP ATM MARS Host Map Object Definitions
--***************************************************************
marsHostMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsHostMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table caches mappings between IP multicast
address to a list of ATM addresses that are
configured or dynamically learned from the MARS.
This address resolution is used for the host map.
It supports the mapping of a block of multicast
group addresses to a cluster member address. In
the case where a group block is associated with
multiple cluster members, several entries are
used to representing the relationship."
::= { marsObjects 3 }
marsHostMapEntry OBJECT-TYPE
SYNTAX MarsHostMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry row contains attributes associated with
the mapping between a multicast group block and an
ATM address."
INDEX { marsIndex,
marsIfIndex,
marsMcMinGrpAddr,
marsMcMaxGrpAddr,
marsHostMapAtmAddr }
::= { marsHostMapTable 1 }
Chung & Greene Standards Track [Page 30]

RFC 2366 Multicast MIB July 1998
MarsHostMapEntry ::=
SEQUENCE {
marsHostMapAtmAddr AtmAddr,
marsHostMapRowType INTEGER,
marsHostMapRowStatus RowStatus
}
marsHostMapAtmAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The mapped cluster member ATM address."
::= { marsHostMapEntry 1 }
marsHostMapRowType OBJECT-TYPE
SYNTAX INTEGER {
static (1),
dynamic (2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Method in which this entry row is created. The
static (1) indicates that this row is created
through configuration. The dynamic (2) indicates
that the row is created as the result of group
address updates received at this MARS."
::= { marsHostMapEntry 2 }
marsHostMapRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The object is used to create, delete or modify a
row in this table.
This object must not be set to 'active' until
instances of all corresponding columns in the

row of this table are appropriately configured.
It is possible for an SNMP management station
to set the row to 'notInService' and modify
the entry and then set it back to 'active'
with the following exception. That is, rows
for which the corresponding instance of
marsHostMapRowType has a value of 'dynamic'
Chung & Greene Standards Track [Page 31]

RFC 2366 Multicast MIB July 1998
can not be modified or deleted."
::= { marsHostMapEntry 3 }
--***************************************************************
-- IP ATM MARS Server Map Object Definitions
--***************************************************************
marsServerMapTable OBJECT-TYPE
SYNTAX SEQUENCE OF MarsServerMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table caches mappings between IP multicast
address to a list of MCS ATM addresses that are
configured or dynamically learned from the MARS.
This address resolution is used for the server map.
It supports the mapping of a block of multicast
group addresses to a MCS address. In the case
where a group block is associated with multiple
MCSs, several entries are used to representing the
relationship."
::= { marsObjects 4 }
marsServerMapEntry OBJECT-TYPE
SYNTAX MarsServerMapEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Each entry row contains attributes associated with
the mapping between a multicast group block and an
MCS address."
INDEX { marsIndex,
marsIfIndex,
marsMcMinGrpAddr,
marsMcMaxGrpAddr,
marsServerMapAtmAddr }
::= { marsServerMapTable 1 }
MarsServerMapEntry ::=
SEQUENCE {
marsServerMapAtmAddr AtmAddr,
marsServerMapRowType INTEGER,
marsServerMapRowStatus RowStatus
}
marsServerMapAtmAddr OBJECT-TYPE
SYNTAX AtmAddr
MAX-ACCESS not-accessible
Chung & Greene Standards Track [Page 32]

RFC 2366 Multicast MIB July 1998
STATUS current
DESCRIPTION
"The mapped MCS ATM address."
::= { marsServerMapEntry 1 }
marsServerMapRowType OBJECT-TYPE
SYNTAX INTEGER {
static (1),
dynamic (2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Method in which this entry row is created. The
'static (1)' indicates that this row is created
through configuration. The 'dynamic (2)' indicates
that the row is created as the result of group

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