# Configure an SA message rule on Switch D so that Switch D will not create SA messages for
Source 2.
[SwitchD] acl number 2001
[SwitchD-acl-basic-2001] rule deny source 10.110.6.100 0
[SwitchD-acl-basic-2001] quit
[SwitchD] msdp
[SwitchD-msdp] import-source acl 2001
[SwitchD-msdp] quit
Verifying the configuration
# Display the (S, G) entries in the SA message cache on Switch C.
[SwitchC] display msdp sa-cache
MSDP Total Source-Active Cache - 8 entries
Matched 8 entries
Source
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
# Display the (S, G) entries in the SA message cache on Switch D.
[SwitchD] display msdp sa-cache
MSDP Total Source-Active Cache - 4 entries
Matched
Source
10.110.3.100
10.110.3.100
10.110.3.100
10.110.3.100
Troubleshooting MSDP
This section describes common MSDP problems and how to troubleshoot them.
MSDP peers stay in disabled state
Symptom
The configured MSDP peers stay in disabled state.
Analysis
A TCP connection-based MSDP peering relationship is established between the local interface
•
address and the MSDP peer.
Group
225.1.1.0
225.1.1.1
225.1.1.2
225.1.1.3
226.1.1.0
226.1.1.1
226.1.1.2
226.1.1.3
4 entries
Group
226.1.1.0
226.1.1.1
226.1.1.2
226.1.1.3
Origin RP
Pro
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
Origin RP
Pro
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
1.1.1.1
?
165
AS
Uptime
Expires
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
?
02:03:30 00:05:31
AS
Uptime
Expires
?
00:32:53 00:05:07
?
00:32:53 00:05:07
?
00:32:53 00:05:07
?
00:32:53 00:05:07