From: kasturi cisco (kasturi_cisco@xxxxxxxxxxx)
Date: Fri Aug 09 2002 - 11:31:17 GMT-3
Mark,
The way i understand it is Snapshot routing by itself is not a backup
mechanism,so when the link fails if u have interesting traffic (in form of
Ping or actual traffic) the link would come up.Snapshot routing is actually
used to ensure that DV protocols dont keep the link up due to periodic route
updates or other broadcasts. So try pinging or claering the routing table on
the client.
HTH. Anyone care to add or correct me.Let me know.
Good luck,
kasturi.
>From: Erhan Kurt <kurt@superonline.net>
>Reply-To: Erhan Kurt <kurt@superonline.net>
>To: Mark Thomas <Mark.Thomas@it.alstom.com.au>,
>"'ccielab@groupstudy.com'" <ccielab@groupstudy.com>
>Subject: RE: Backup using snapshot routing
>Date: Fri, 9 Aug 2002 14:57:52 +0300
>
>To trigger backup interface:
>
>Use set port disable in Cat for eth.
>Use shut in FR switch in a FR interface.
>
>
>
>-----Original Message-----
>From: Mark Thomas [mailto:Mark.Thomas@it.alstom.com.au]
>Sent: 09 Apustos 2002 Cuma 14:07
>To: 'ccielab@groupstudy.com'
>Subject: Backup using snapshot routing
>
>
>Hello All
>
>Snapshot routing is driving me nuts
>
>Simple scenario
>Using ipx rip and ip rip or igrp (none of them work)
>
>The Ethernet is the primary and ISDN the backup Bri0---------Bri0
>R5 R6
>E0-----------E0
>
>I can bring the link up manually with both protocols but snapshot routing
>never works for any protocol when the Ethernet is downed by ipx down or
>shutdown or having its address removed.
>
>Here are the configs, if anyone could shed some light on this I would be
>grateful
>
>version 12.1
>!
>hostname r5
>username r6 password 0 cisco
>!
>ipx routing 0005.0005.0005
>isdn switch-type basic-ni
>!
>interface Loopback0
> ip address 5.5.5.5 255.255.255.0
> ipx network 5
>!
>interface Ethernet0
> mac-address 0005.0005.0005
> ip address 128.10.100.5 255.255.255.0
> ipx network 100
>!
>interface BRI0
> ip address 128.10.56.5 255.255.255.0
> encapsulation ppp
> dialer idle-timeout 45
> dialer map snapshot 1 name r6 broadcast 8358662
> dialer map ip 128.10.56.6 name R6 broadcast 8358662
> dialer map ip 128.10.56.6 name R6 broadcast 8358664
> dialer map ipx 56.0006.0006.0006 name r6 broadcast 8358662 dialer map
>ipx
>56.0006.0006.0006 name r6 broadcast 8358664 dialer-group 1 ipx network 56
>no ipx route-cache ipx watchdog-spoof ipx spx-spoof isdn switch-type
>basic-ni isdn spid1 0835866101 8358661 isdn spid2 0835866301 8358663
>snapshot client 5 1200 suppress-statechange-update dialer ppp
>authentication chap ! router igrp 1 network 5.0.0.0 network 128.10.0.0 !
>access-list 900 deny any any sap log access-list 900 deny any any rip log
>access-list 900 deny any any 457 log access-list 900 permit any any all
>dialer-list 1 protocol ipx list 900 dialer-list 1 protocol ip permit !
>
>
>
>hostname r6
>username r5 password 0 cisco
>!
>ipx routing 0006.0006.0006
>isdn switch-type basic-ni
>!
>interface Loopback0
> ip address 6.6.6.6 255.255.255.0
> ipx network 6
>!
>interface Ethernet0
> mac-address 0006.0006.0006
> ip address 128.10.100.6 255.255.255.0
> ipx network 100
>!
>interface BRI0
> ip address 128.10.56.6 255.255.255.0
> encapsulation ppp
> dialer map ipx 56.0005.0005.0005 name r5 broadcast 8358661 dialer map
>ipx
>56.0005.0005.0005 name r5 broadcast 8358662 dialer-group 1 ipx network 56
>no ipx route-cache ipx watchdog-spoof ipx spx-spoof isdn switch-type
>basic-ni isdn spid1 0835866201 8358662 isdn spid2 0835866401 8358664
>snapshot server 5 dialer ppp authentication chap ! router igrp 1 network
>6.0.0.0 network 128.10.0.0 ! access-list 1 permit 5.0.0.0 log access-list
>900 deny any any rip log access-list 900 deny any any sap log access-list
>900 deny any any 457 log access-list 900 permit any any log dialer-list 1
>protocol ipx list 900 dialer-list 1 protocol ip permit ! ! ! Regards
>
>Mark
>
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