Re: MSDP/Anycast Configuration

Hi Con,

I have some MSDP Peers in a production network and it populates with the
hostname :-)

On Fri, Aug 14, 2009 at 9:41 AM, Con Spathas <ccie19226_at_googlemail.com>wrote:

> 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
> >> > > !
> >> > >
> >> > >
> >> > >
> >> > > _________________________________________________________________
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> >> > > c:082009
> >> > >
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> >> >
> >> >
> >> > --
> >> > Victor Cappuccio
> >> > CCIE R/S# 20657
> >> > CCSI# 30452
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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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-- 
Bryan Bartik
CCIE #23707 (R&S), CCNP
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
Blogs and organic groups at http://www.ccie.net