From: Bob Sinclair (bob@bobsinclair.net)
Date: Sat Nov 18 2006 - 15:48:43 ART
David,
As you have demonstrated, IOS supports only a single static mroute statement
per group range. I have never seen the floating mroute work, and would be
grateful if anyone can tell me the use of the AD!
If you want to implement failover to the same RP over different tunnels,
perhaps you could configure your mroute with an IP next hop, and have
different metrics across the tunnels to that address.
HTH,
Bob Sinclair
CCIE 10427 CCSI 30427
www.netmasterclass.net
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
david robin
Sent: Saturday, November 18, 2006 5:50 AM
To: Cisco certification
Subject: another ip mroute question
Dear all,
I have a problem
r3, r4,r5 are 3 frame relay routers with r3 as the hub, dlci to ip mapping
didnt support broadcast
and you want to enable multicast on the 3 routers
tunnels will be the sollution, I make twon tunnels over the frame relay
cloud ( tunnel 34 and tunnel 35 ), the first between r3 and r4 and the
second between r3 and r5
r5 will be a backup to r4 in case there is a failure.
I try to use anycast rp and I configure it with no problem, the anycast rp
will be 150.1.9.9.
the problem that I try to use floating mroutes on r3 from 150.1.9.9 ( in
case tunnel 34 is down, mcast traffic will flow to tunnel 35).
but when I do that the mroute replaced each others
here is the configuration on R3
interface Tunnel35
ip address 154.1.35.3 255.255.255.0
ip pim sparse-mode
tunnel source Serial1/0
tunnel destination 154.1.0.5
!
interface Tunnel34
ip address 154.1.34.3 255.255.255.0
ip pim sparse-mode
tunnel source Serial1/0
tunnel destination 154.1.0.4
!
!
interface Serial1/0
ip address 154.1.0.3 255.255.255.0
encapsulation frame-relay IETF
ip ospf network point-to-multipoint non-broadcast
serial restart-delay 0
frame-relay map ip 154.1.0.4 304
frame-relay map ip 154.1.0.5 305
frame-relay interface-dlci 304
frame-relay interface-dlci 305
no frame-relay inverse-arp
frame-relay lmi-type ansi
!
Rack1R3#sh ip route 150.1.9.9
Routing entry for 150.1.9.9/32
Known via "ospf 1", distance 110, metric 20, type extern 2, forward metric
10
Last update from 154.1.0.4 on Serial1/0, 00:51:25 ago
Routing Descriptor Blocks:
* 154.1.0.4, from 150.1.4.4, 00:51:25 ago, via Serial1/0
Route metric is 20, traffic share count is 1
!
now i try to configure floating mroutes
Rack1R3(config)#ip mroute 150.1.9.9 255.255.255.255 tunnel 34
Rack1R3(config)#ip mroute 150.1.9.9 255.255.255.255 tunnel 35 200
but what happend is that the last command override the first one as shown
Rack1R3#show startup-config | i ip mroute
no ip mroute-cache
ip mroute 150.1.9.9 255.255.255.255 Tunnel35 200
Rack1R3#
Rack1R3#
Rack1R3#sh ip rpf 150.1.9.9
RPF information for ? (150.1.9.9)
RPF interface: Tunnel35
RPF neighbor: ? (154.1.35.5)
RPF route/mask: 150.1.9.9/32
RPF type: static
RPF recursion count: 0
Doing distance-preferred lookups across tables
Rack1R3#
Please help
thanks in advance
This archive was generated by hypermail 2.1.4 : Fri Dec 01 2006 - 08:05:47 ART