Troubleshooting Msdp - H3C S3610-28P Operation Manual

Operation Manual – Multicast Protocol
H3C S3610&S5510 Series Ethernet Switches
[SwitchF] display msdp brief
MSDP Peer Brief Information
Configured
1
Peer's Address
192.168.3.2

7.8 Troubleshooting MSDP

7.8.1 MSDP Peers Stay in Down State
I. Symptom
The configured MSDP peers stay in the down state.
II. Analysis
A TCP connection–based MSDP peering relationship is established between the
local interface address and the MSDP peer after the configuration.
The TCP connection setup will fail if there is a consistency between the local
interface address and the MSDP peer address configured on the router.
If no route is available between the MSDP peers, the TCP connection setup will
also fail.
III. Solution
1) Check that a route is available between the routers. Carry out the display ip
routing-table command to check whether the unicast route between the routers is
correct.
2) Check that a unicast route is available between the two routers that will become
MSDP peers to each other.
3) Verify the interface address consistency between the MSDP peers. Use the
display current-configuration command to verify that the local interface address
and the MSDP peer address of the remote router are the same.
7.8.2 No SA Entries in the Router's SA Cache
I. Symptom
MSDP fails to send (S, G) entries through SA messages.
II. Analysis
The import-source command is used to control sending (S, G) entries through SA
messages to MSDP peers. If this command is executed without the acl-number
Up Listen
1 0
State Up/Down time
UP 00:16:40
7-31
Chapter 7 MSDP Configuration
Connect Shutdown
0 0
AS SA Count
? 13
Down
0
Reset Count
0