mirable dictu!

secret is in the standby track command.  lost 9 pings and then picked 
up just like nothing happened.  can pull any of the 4 links now an it 
works just like in the movies.

thanks all.



----- Original Message -----
From: garrett allen 
Date: Friday, March 7, 2003 6:57 am
Subject: Re: RE: it started out as a really good idea ... [7:64638]

> must ... find... coffee  ....
> 
> just catching back up as dc awakens.  the default gateways used by 
> the 
> pc's are the virtual router addresses, a different one for each 
> (i.e. 
> pc1 uses virtual router 1 and pc2 uses virtual router 2).  the pc 
> arp 
> caches correctly reflect the virtual mac address (cisco generated 
> 00000c...)which are different than the router interfaces bia's.  
> the 
> virtual macs do move and the different interfaces do seem to stop 
> and 
> start their role as the active interface.
> 
> looking over the traces last nite didn't yield much more.  i have 
> a 
> couple things to try and i did find a tac article that holds some 
> hope 
> using standby use-bia.  we'll see.
> 
> thanks for all your thoughts and help.  i'll get this to work or 
> i'll 
> revert to plan b, 2 tin cans and ...
> 
> ----- Original Message -----
> From: Priscilla Oppenheimer 
> Date: Thursday, March 6, 2003 5:14 pm
> Subject: RE: it started out as a really good idea ... [7:64638]
> 
> > What did you use a default gateway on the PCs??
> > 
> > Priscilla
> > 
> > garrett allen wrote:
> > > 
> > > i have a need for a high availability solution for a default
> > > gateway
> > > configuration.  just finished the ccdp and thought it might be 
> > > interesting to try hsrp on a pair of 2514's.  put some of that
> > > theory
> > > to work.  instead of highly resiliant i've managed to configure
> > > it for
> > > mass failure.  arg.., not exactly what i had in mind.  now, any
> > > time i
> > > take down 1 of the 4 links, the connect between 2 remote hosts
> > > dies.
> > > this is in a lab (production is not a lab, production is not a
> > > lab...)
> > > so it is a mystery i would like to solve, but it is not
> > > critical.
> > > 
> > > here is the basic config (hope it makes it):
> > > 
> > > pc host 1  -----+----- e0 router 1, e1 ----+---------  pc host 2
> > >                 |                          |
> > >                 |----- e0 router 2, e1 ----|
> > > 
> > > the routers act as a default gateway between the internal
> > > network
> > > (represented by pc host 1) and the external world (represented
> > > by pc
> > > host 2).  i have used 10.3 and 10.4 /16 as the addresses for
> > > each side
> > > of the divide.  i want to run hsrp on both sets of router
> > > interfaces so
> > > that in the event a router or an interface fails, the traffic
> > > impact is
> > > minimized.  in the real world pc host 2 will be a firewall and
> > > there
> > > will be other hosts off that segment as well
> > > 
> > > looks easy.  sounds plausible.  read the cisco docs.  looks
> > > like it
> > > should work.  minimal incantations before tickling the
> > > keyboard.  key
> > > in the configs and it fires up nicely. do the show standby
> > > thingee and
> > > all looks cool.  can ping the 2 stations end to end.  most
> > > excellent.
> > > put a router in debug mode.  when i pull one of the 4 router
> > > cables the
> > > router goes through a state change but no bits make it to the
> > > far end.
> > > not even the shiney ones.  bitstream courtesy of ping.
> > > 
> > > maybe i misunderstood what hsrp was suppose to do.  the configs
> > > are
> > > below, along with the show standby results.  both are 2514's (2
> > > aui's)
> > > and both are running 12.2(1d).  probably forgot to put the
> > > interface in
> > > mumble mode or something equally easy.  no laughter, please.
> > > 
> > > thanks in advance.
> > > 
> > > router 1
> > > interface Ethernet0
> > >  ip address 10.3.255.2 255.255.0.0
> > >  no ip route-cache
> > >  no ip mroute-cache
> > >  standby 1 priority 200 preempt
> > >  standby 1 ip 10.3.0.2
> > > !
> > > interface Ethernet1
> > >  ip address 10.4.254.2 255.255.0.0
> > >  no ip route-cache
> > >  no ip mroute-cache
> > >  standby 2 priority 200 preempt
> > >  standby 2 ip 10.4.254.10
> > > 
> > > 
> > > router 2
> > > interface Ethernet0
> > >  ip address 10.3.255.1 255.255.0.0
> > >  no ip route-cache
> > >  no ip mroute-cache
> > >  standby 1 priority 225 preempt
> > >  standby 1 ip 10.3.0.2
> > > !
> > > interface Ethernet1
> > >  ip address 10.4.254.1 255.255.0.0
> > >  no ip route-cache
> > >  no ip mroute-cache
> > >  standby 2 priority 150 preempt
> > >  standby 2 ip 10.4.254.10
> > > 
> > > results of show standby
> > > Router1#show standby
> > > Ethernet0 - Group 1
> > >   Local state is Standby, priority 200, may preempt
> > >   Hellotime 3 holdtime 10
> > >   Next hello sent in 00:00:00.940
> > >   Hot standby IP address is 10.3.0.2 configured
> > >   Active router is 10.3.255.1 expires in 00:00:09, priority 225
> > >   Standby router is local
> > >   20 state changes, last state change 00:22:34
> > > Ethernet1 - Group 2
> > >   Local state is Active, priority 200, may preempt
> > >   Hellotime 3 holdtime 10
> > >   Next hello sent in 00:00:01.676
> > >   Hot standby IP address is 10.4.254.10 configured
> > >   Active router is local
> > >   Standby router is 10.4.254.1 expires in 00:00:08
> > >   Standby virtual mac address is 0000.0c07.ac02
> > >   17 state changes, last state change 00:23:26
> > > Router1#
> > > 
> > > Router2#show standby
> > > Ethernet0 - Group 1
> > >   Local state is Active, priority 225, may preempt
> > >   Hellotime 3 holdtime 10
> > >   Next hello sent in 00:00:01.010
> > >   Hot standby IP address is 10.3.0.2 configured
> > >   Active router is local
> > >   Standby router is 10.3.255.2 expires in 00:00:09
> > >   Standby virtual mac address is 0000.0c07.ac01
> > >   24 state changes, last state change 00:22:04
> > > Ethernet1 - Group 2
> > >   Local state is Standby, priority 150, may preempt
> > >   Hellotime 3 holdtime 10
> > >   Next hello sent in 00:00:01.272
> > >   Hot standby IP address is 10.4.254.10 configured
> > >   Active router is 10.4.254.2 expires in 00:00:09, priority 200
> > >   Standby router is local
> > >   32 state changes, last state change 00:22:25
> > > Router2#
> > Nondisclosure violations to [EMAIL PROTECTED]
> Nondisclosure violations to [EMAIL PROTECTED]




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