From: Donny MATEO (donny.mateo@sg.ca-indosuez.com)
Date: Wed Jan 28 2004 - 22:35:10 GMT-3
erm..what does it means by omitting the RPs completely ?
i thought that the whole point of MSDP is to allow inter RP communication
of any active source in the multicast domain. THe whole idea being RP
would have a table of all active source and a protocol (MSDP) was created
to enable communication between RP to exchange the Active Source
information.
As for anycast, I do believe you have to configure RP. Anycast is short is
just configuring a bunch of RP using the same IP address (loopback
address). The advantage is probably to safe usage of memory for the router
RP table and efficiency in routing path from the route protocol and of
course redundancy as well.
As for testing MSDP, you could probably try to emulate some source and see
if the other MSDP peer has knowledge of this source as well ?
"Paul Chen" <cpjchen@starhub.net.sg>
Sent by: nobody@groupstudy.com
01/29/2004 09:15 AM
Please respond to "Paul Chen"
To: <ccielab@groupstudy.com>
cc: (bcc: Donny MATEO/ADPC/ASIA/BANQUE_INDOSUEZ/FR)
Subject: MSDP-BGP
Hi,
I was wondering if anyone knows whether I need to configure a RP using
ANYCAST ?
Some of the Cisco Press books seems to have omitted the RPs completely.
Cat 3550 ---- Ethernet --- FRS
Over here, I configured a static RP - how do you know this working other
than just seeing that the msdp status as 'up' ?
Thanks.
Paul
CAT1:
interface Loopback10
ip address 10.1.1.11 255.255.255.0
interface Vlan30
ip address 141.37.22.10 255.255.255.0
router bgp 700
no synchronization
bgp log-neighbor-changes
neighbor 141.37.22.7 remote-as 700
neighbor 141.37.35.3 remote-as 1000
neighbor 141.37.35.3 ebgp-multihop 10
no auto-summary
!
address-family ipv4 multicast
neighbor 141.37.22.7 activate
no auto-summary
exit-address-family
ip pim rp-address 10.1.1.11
ip msdp peer 141.37.22.7 connect-source Vlan30
ip msdp cache-sa-state
ip msdp originator-id Vlan30
cat1#sh ip msdp peer
MSDP Peer 141.37.22.7 (?), AS 700
Description:
Connection status:
State: Up, Resets: 0, Connection source: Vlan30 (141.37.22.10)
Uptime(Downtime): 00:02:51, Messages sent/received: 4/3
Output messages discarded: 0
Connection and counters cleared 00:03:10 ago
SA Filtering:
Input (S,G) filter: none, route-map: none
Input RP filter: none, route-map: none
Output (S,G) filter: none, route-map: none
Output RP filter: none, route-map: none
SA-Requests:
Input filter: none
Sending SA-Requests to peer: disabled
Peer ttl threshold: 0
SAs learned from this peer: 0
Input queue size: 0, Output queue size: 0
cat1#
cat1#sh ip msdp summary
MSDP Peer Status Summary
Peer Address AS State Uptime/ Reset SA Peer Name
Downtime Count Count
141.37.22.7 700 Up 00:03:25 0 0 ?
R7:===============================================
interface Loopback10
ip address 10.1.1.11 255.255.255.0
interface Ethernet0
ip address 141.37.22.7 255.255.255.0
!
router bgp 700
no synchronization
bgp log-neighbor-changes
network 7.7.7.0 mask 255.255.255.0
neighbor 141.37.22.10 remote-as 700
neighbor 141.37.22.10 route-reflector-client
neighbor 141.37.22.20 remote-as 700
neighbor 141.37.22.20 route-reflector-client
no auto-summary
!
address-family ipv4 multicast
neighbor 141.37.22.10 activate
exit-address-family
!
ip pim rp-address 10.1.1.11
ip msdp peer 141.37.22.10 connect-source Ethernet0
ip msdp cache-sa-state
ip msdp originator-id Ethernet0
FRS#sh ip msdp peer
MSDP Peer 141.37.22.10 (?), AS 700
Description:
Connection status:
State: Up, Resets: 0, Connection source: Ethernet0 (141.37.22.7)
Uptime(Downtime): 00:06:59, Messages sent/received: 7/8
Output messages discarded: 0
Connection and counters cleared 00:08:59 ago
SA Filtering:
Input (S,G) filter: none, route-map: none
Input RP filter: none, route-map: none
Output (S,G) filter: none, route-map: none
Output RP filter: none, route-map: none
SA-Requests:
Input filter: none
Sending SA-Requests to peer: disabled
Peer ttl threshold: 0
SAs learned from this peer: 0
Input queue size: 0, Output queue size: 0
FRS#sh ip msdp su
FRS#sh ip msdp summary
MSDP Peer Status Summary
Peer Address AS State Uptime/ Reset SA Peer Name
Downtime Count Count
141.37.22.10 700 Up 00:07:07 0 0 ?
FRS#
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