Re: MSDP/Anycast Configuration

I have a feeling you're right Bryan (I've never tried it - will do on
the next lab where I have MDSP peers).

I daresay it's similar to when you look at the RPs "sh ip pim rp
mapping" you get a ? next to the RP address. When you set an ip host
config for that IP on the router - it then resolves to the host entry
configured.

Cheers.

On Thu, Aug 13, 2009 at 6:10 PM, Bryan Bartik<bbartik_at_ipexpert.com> wrote:
> Hello Yuri,
>
> The domain name will show up there, so I am pretty sure ? means that no
> reverse lookup was found.
>
> On Thu, Aug 13, 2009 at 8:59 AM, Cisco Fanatic <ebay_products_at_hotmail.com>wrote:
>
>> Thanks Victor it is working now.
>>
>> Does anyone know why there is a ? in the below command. What does it mean?
>>
>> R2#show ip msdp peer
>> MSDP Peer 150.18.3.3 (?), AS 300 (configured AS) <--
>>
>> -Yuri
>>
>> > Date: Wed, 12 Aug 2009 11:26:08 +0300
>> > Subject: Re: MSDP/Anycast Configuration
>> > From: vcappuccio_at_gmail.com
>> > To: ebay_products_at_hotmail.com
>> > CC: ccielab_at_groupstudy.com
>> >
>> > Hi
>> >
>> > Try now using this please
>> >
>> > R2(config)#ip msdp peer 172.16.3.3 connect-source Loopback0 remote-as 346
>> > R2(config)#
>> > MSDP(0): 172.16.3.3: Sending TCP connect
>> > %MSDP-5-PEER_UPDOWN: Session to peer 172.16.3.3 going up
>> > R2(config)#
>> > MSDP(0): 172.16.3.3: TCP connection established
>> > R2(config)#
>> > MSDP(0): 172.16.3.3: Originating SA message, originator-id 172.16.2.2
>> > MSDP(0): Sent entire mroute table, mroute_cache_index = 0, Qlen = 0
>> > MSDP(0): 172.16.3.3: Send 32-byte message to peer
>> > MSDP(0): 172.16.3.3: Building SA message from SA cache
>> > MSDP(0): start_index = 0, sa_cache_index = 0, Qlen = 0
>> > MSDP(0): Sent entire sa-cache, sa_cache_index = 0, Qlen = 0
>> > R2(config)#
>> > MSDP(0): Received 3-byte TCP segment from 172.16.3.3
>> > MSDP(0): Append 3 bytes to 0-byte msg 35 from 172.16.3.3, qs 1
>> > MSDP(0): 172.16.3.3: Received 3-byte msg 35 from peer
>> > MSDP(0): 172.16.3.3: Keepalive TLV
>> > R2(config)#
>> > R2(config)#do show run | in msdp
>> > ip msdp peer 172.16.3.3 connect-source Loopback0 remote-as 346
>> > ip msdp originator-id Loopback0
>> > R2(config)#do show ver | in IOS
>> > Cisco IOS Software, 7200 Software (C7200-JK9S-M), Version 12.4(12),
>> RELEASE
>> > SOFTWARE (fc1)
>> > R2(config)#
>> > !-------------
>> > !Sending the SA to the other RP, in other to Join the S,G and *,G or
>> please
>> > it on NULL0 if no clients are interested in this
>> > !traffic
>> >
>> > *MSDP(0): 172.16.3.3: Send 100-byte SA encapsulated data for (10.1.15.5,
>> > 224.6.6.6), RP 172.16.2.2*
>> >
>> > !--------------
>> > R2(config)#do show ip msdp peer
>> > MSDP Peer 172.16.3.3 (?), AS 346 (configured AS)
>> > Connection status:
>> > State: Up, Resets: 0, Connection source: Loopback0 (172.16.2.2)
>> > Uptime(Downtime): 00:01:46, Messages sent/received: 2/2
>> > Output messages discarded: 0
>> > Connection and counters cleared 00:01:46 ago
>> > Elapsed time since last message: 00:00:37
>> > Local Address of connection: 172.16.2.2
>> > Local Port: 12227, Remote Port: 639
>> > 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
>> > Peer ttl threshold: 0
>> > SAs learned from this peer: 0
>> > Input queue size: 0, Output queue size: 0
>> > Message counters:
>> > RPF Failure count: 0
>> > SA Messages in/out: 0/2
>> > SA Requests in: 0
>> > SA Responses out: 0
>> > Data Packets in/out: 0/0
>> > R2(config)#do show ip msdp sa-ca
>> > MSDP Source-Active Cache - 0 entries
>> > R2(config)#
>> >
>> > While in the other Inter-AS Router
>> > R3#show ip msdp sa-cache
>> > MSDP Source-Active Cache - 0 entries
>> > R3#
>> > %MSDP-5-PEER_UPDOWN: Session to peer 172.16.2.2 going up
>> > R3#show ip msdp sa
>> > MSDP Source-Active Cache - 2 entries
>> > (10.1.15.5, 224.6.6.6), RP 172.16.2.2, BGP/AS 0, 00:02:19/00:05:33, Peer
>> > 172.16.2.2
>> > (172.16.5.5, 224.6.6.6), RP 172.16.2.2, BGP/AS 0, 00:02:19/00:05:33, Peer
>> > 172.16.2.2
>> > R3#show ip msdp peer
>> > MSDP Peer 172.16.2.2 (?), AS 125 (configured AS)
>> > Connection status:
>> > State: Up, Resets: 1, Connection source: Loopback0 (172.16.3.3)
>> > Uptime(Downtime): 00:02:27, Messages sent/received: 3/3
>> > Output messages discarded: 0
>> > Connection and counters cleared 00:08:19 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
>> > Peer ttl threshold: 0
>> > SAs learned from this peer: 2
>> > Input queue size: 0, Output queue size: 0
>> > R3#
>> >
>> > more configuration information @
>> >
>>
>> http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_0/nx-os/multicast/co
>> nfiguration/guide/msdp.pdf<http://www.cisco.com/en/US/docs/switches/datacenter/sw/4_0/nx-os/multicast/co%0Anfiguration/guide/msdp.pdf>
>> >
>> >
>> > Thanks,
>> >
>> >
>> > On Tue, Aug 11, 2009 at 8:52 PM, Cisco Fanatic
>> <ebay_products_at_hotmail.com>wrote:
>> >
>> > > All,
>> > >
>> > > I was doing MSDP/Anycast configuration and somehow I don't see the "ip
>> msdp
>> > > peer 150.18.3.3 remote-as" command in the running config. Am I missing
>> > > something?
>> > >
>> > > R2
>> > > ++
>> > > !
>> > > interface Loopback0
>> > > ip address 150.18.2.2 255.255.255.255
>> > > ip pim sparse-dense-mode
>> > > !
>> > > interface Loopback1
>> > > ip address 150.18.18.1 255.255.255.255
>> > > ip pim sparse-dense-mode
>> > > !
>> > > interface Ethernet0/0
>> > > ip address 174.18.123.2 255.255.255.0
>> > > ip pim sparse-dense-mode
>> > > !
>> > > router bgp 200
>> > > no synchronization
>> > > bgp router-id 150.18.2.2
>> > > bgp log-neighbor-changes
>> > > neighbor 150.18.3.3 remote-as 300
>> > > neighbor 150.18.3.3 ebgp-multihop 255
>> > > neighbor 150.18.3.3 update-source Loopback0
>> > > no auto-summary
>> > > !
>> > > ip pim autorp listener
>> > > !
>> > > ip pim send-rp-announce Loopback1 scope 16 group-list R2_GROUPS
>> > > !
>> > > ip msdp peer 150.18.3.3 connect-source Loopback0
>> > > ip msdp peer 150.18.3.3 remote-as 300 <--XXXX
>> > > ip msdp originator-id Loopback0
>> > > !
>> > > ip access-list standard R2_GROUPS
>> > > permit 239.0.0.9
>> > > permit 239.0.0.7
>> > > !
>> > >
>> > > R3
>> > > ++
>> > > !
>> > > interface Loopback0
>> > > ip address 150.18.3.3 255.255.255.0
>> > > ip pim sparse-dense-mode
>> > > !
>> > > interface Loopback1
>> > > ip address 150.18.18.1 255.255.255.255
>> > > ip pim sparse-dense-mode
>> > > !
>> > > interface Ethernet0/0
>> > > ip address 174.18.123.3 255.255.255.0
>> > > ip pim sparse-dense-mode
>> > > !
>> > > router bgp 300
>> > > no synchronization
>> > > bgp router-id 150.18.3.3
>> > > bgp log-neighbor-changes
>> > > neighbor 150.18.2.2 remote-as 200
>> > > neighbor 150.18.2.2 ebgp-multihop 255
>> > > neighbor 150.18.2.2 update-source Loopback0
>> > > no auto-summary
>> > > !
>> > > ip pim autorp listener
>> > > !
>> > > ip pim send-rp-announce Loopback1 scope 16 group-list R5_GROUPS
>> > > !
>> > > ip msdp peer 150.18.2.2 connect-source Loopback0
>> > > ip msdp peer 150.18.2.2 remote-as 200 <--XXXX
>> > > ip msdp originator-id Loopback0
>> > > !
>> > > ip access-list standard R5_GROUPS
>> > > permit 239.0.0.10
>> > > permit 239.0.0.8
>> > > !
>> > >
>> > >
>> > >
>> > > _________________________________________________________________
>> > > Windows Live : Keep your life in sync.
>> > >
>> > >
>>
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>> > > c:082009
>> > >
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>> >
>> > --
>> > Victor Cappuccio
>> > CCIE R/S# 20657
>> > CCSI# 30452
>> > www.anetworkerblog.com
>> > www.linkedin.com/in/vcappuccio
>> >
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>
> --
> Bryan Bartik
> CCIE #23707 (R&S), CCNP
> Sr. Support Engineer - IPexpert, Inc.
> URL: http://www.IPexpert.com
>
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Received on Fri Aug 14 2009 - 16:41:13 ART