Debugging Msdp; Msdp With Anycast Rp - Dell Z9000 Configuration Manual

Example of the clear ip msdp peer Command and Verifying Statistics are Cleared
R3_E600(conf)#do show ip msdp peer
Peer Addr: 192.168.0.1
Local Addr: 192.168.0.3(639) Connect Source: Lo 0
State: Established Up/Down Time: 00:04:26
Timers: KeepAlive 30 sec, Hold time 75 sec
SourceActive packet count (in/out): 5/0
SAs learned from this peer: 0
SA Filtering:
Input (S,G) filter: myremotefilter
Output (S,G) filter: none
R3_E600(conf)#do clear ip msdp peer 192.168.0.1
R3_E600(conf)#do show ip msdp peer
Peer Addr: 192.168.0.1
Local Addr: 0.0.0.0(0) Connect Source: Lo 0
State: Inactive Up/Down Time: 00:00:04
Timers: KeepAlive 30 sec, Hold time 75 sec
SourceActive packet count (in/out): 0/0
SAs learned from this peer: 0
SA Filtering:
Input (S,G) filter: myremotefilter
Output (S,G) filter: none

Debugging MSDP

To debug MSDP, use the following command.
• Display the information exchanged between peers.
CONFIGURATION mode
debug ip msdp
Example of the debug ip msdp Command
R1_E600(conf)#do debug ip msdp
All MSDP debugging has been turned on
R1_E600(conf)#03:16:08 : MSDP-0: Peer 192.168.0.3, sent Keepalive msg
03:16:09 : MSDP-0: Peer 192.168.0.3,
03:16:27 : MSDP-0: Peer 192.168.0.3,
03:16:38 : MSDP-0: Peer 192.168.0.3,
03:16:39 : MSDP-0: Peer 192.168.0.3,
03:17:09 : MSDP-0: Peer 192.168.0.3,
03:17:10 : MSDP-0: Peer 192.168.0.3,
03:17:27 : MSDP-0: Peer 192.168.0.3,
Input (S,G) filter: none
Output (S,G) filter: none

MSDP with Anycast RP

Anycast RP uses MSDP with PIM-SM to allow more than one active group to use RP mapping.
PIM-SM allows only active groups to use RP mapping, which has several implications:
• traffic concentration: PIM-SM allows only one active group to RP mapping which means that all
traffic for the group must, at least initially, travel over the same part of the network. You can load
balance source registration between multiple RPs by strategically mapping groups to RPs, but this
508
rcvd Keepalive msg
sent Source Active msg
sent Keepalive msg
rcvd Keepalive msg
sent Keepalive msg
rcvd Keepalive msg
sent Source Active msg
Multicast Source Discovery Protocol (MSDP)