Huawei quidway s7700 - Configuring the SA Request; Establishing the Configuration Task

l Run the display msdp [ vpn-instance vpn-instance-name | all-instance ] sa-count [ 2-
byte-as-number | 4-byte-as-number ] command to check the number of (S, G) entries in the
SA Cache of the public network instance, VPN instance or all instances.
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Example
Run the display msdp sa-cache command to check (S, G) entries in SA Cache.
<Quidway> display msdp sa-cache
MSDP Source-Active Cache Information of VPN-Instance: public net
MSDP Total Source-Active Cache - 3 entries
MSDP matched 3 entries
(8.8.8.8, 225.0.0.200)
Origin RP: 4.4.4.4
Pro: BGP, AS: 10
Uptime: 00:00:33, Expires: 00:05:27
(8.8.8.8, 225.0.0.201)
Origin RP: 4.4.4.4
Pro: BGP, AS: 1.0
Uptime: 00:00:33, Expires: 00:05:27
(8.8.8.8, 225.0.0.202)
Origin RP: 4.4.4.4
Pro: BGP, AS: 65535.65535
Uptime: 00:00:33, Expires: 00:05:27
Run the display msdp sa-count command to check the number of (S, G) entries in SA Cache.
<Quidway> display msdp sa-count
MSDP Source-Active Count Information of VPN-Instance: public net
Number of cached Source-Active entries, counted by Peer
Peer's Address Number of SA
10.10.10.10 5
Number of source and group, counted by AS
AS Number of source Number of group
? 3 3
Total 5 Source-Active entries matched
7.7 Configuring the SA Request
If the capacity of the SA cache enabled on the remote MSDP peer is too large, configuring
"sending SA Request message" on the local device can shorten the time taken by a receiver to
obtain multicast source information. You can configure filtering rules for receiving SA Request
messages on a specified remote MSDP peer.
7.7.1 Establishing the Configuration Task
After PIM-SM inter-domain multicast or anycast RP in a PIM-SM domain is configured, you
can configure "SA Request message sending" as required.
Applicable Environment
The capacity of SA Cache on certain switchs is small. When these switchs need to receive
multicast data, they cannot immediately obtain the valid (S, G) information and need to wait for
the SA message sent by their MSDP peers in the next period.
If SA Cache is enabled on the remote MSDP peer and the capacity of the SA Cache is large,
configuring "sending SA Request message" on the local switch can shorten the period during
which receivers obtain multicast source information.
Quidway S7700 Smart Routing Switch
Configuration Guide - Multicast 7 MSDP Configuration
Issue 01 (2011-07-15) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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