Re: [c-nsp] HSRP, and the router on the other side...

2010-03-31 Thread Gert Doering
Hi, On Tue, Mar 30, 2010 at 01:11:45PM +0200, Peter Rathlev wrote: > > ...traffic from "offsite" will always be routed out of router-slave; > > no amount of fiddling with route metrics will help you there. You > > could do something awful like have the HSRP master advertise more > > specifics, but

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-30 Thread Phil Mayers
On 03/30/2010 12:11 PM, Peter Rathlev wrote: I a tactless attempt to digress, an MPLS VPN setup would actually give you the ability to force "router-master" to receive all traffic from upstream. Having the router-master use a higher local-preference for the prefix in MP-BGP would force others t

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-30 Thread Peter Rathlev
On Tue, 2010-03-30 at 11:47 +0100, Phil Mayers wrote: > As I said, I wouldn't even do that personally. HSRP doesn't work that > way, the locally connected route is "up" and will always override, > e.g. in the following topology: > > offsite -- router-slave -- router-master > |

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-30 Thread Phil Mayers
On 03/30/2010 01:07 AM, Andy Koch wrote: Depending on what routing protocol you are using you could write an EEM applet to modify a route-map changing the advertised route metric when HSRP master/slave status changes, but honestly I wouldn't bother - instead, just deal with the issue. If you a

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-29 Thread Andy Koch
On Mon, Mar 29, 2010 at 16:47, Phil Mayers wrote: > You don't. You can't. It's (arguably) a weakness of HSRP compared to some > combined layer2/layer3 failover protocols e.g. Extreme ESRP. > > The return traffic will always come in via the lowest-cost route, and if it > hits the HSRP standby, it w

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-29 Thread Phil Mayers
On 03/29/2010 08:40 PM, Rick Coloccia wrote: Hi Everyone, Please view this message in a fixed width font for the bad ascii art to make sense... thanks! I have an HSRP question, I'm hoping someone here can clarify something for me that isn't made clear in any of the many "how to use HSRP" web si

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-29 Thread Michael K. Smith - Adhost
Answers in line below. > -Original Message- > From: cisco-nsp-boun...@puck.nether.net [mailto:cisco-nsp- > boun...@puck.nether.net] On Behalf Of Rick Coloccia > Sent: Monday, March 29, 2010 12:40 PM > To: 'Cisco-nsp' > Subject: [c-nsp] HSRP, and the router

Re: [c-nsp] HSRP, and the router on the other side...

2010-03-29 Thread Antonio Querubin
On Mon, 29 Mar 2010, Rick Coloccia wrote: Here's my question: How do I tell the upstream router to get back to my hosts via the switch on which the virtual ip address resides? so my question, restated, is this: What is the route that I should have in the core for it to know how to get traf

[c-nsp] HSRP, and the router on the other side...

2010-03-29 Thread Rick Coloccia
Hi Everyone, Please view this message in a fixed width font for the bad ascii art to make sense... thanks! I have an HSRP question, I'm hoping someone here can clarify something for me that isn't made clear in any of the many "how to use HSRP" web sites all over the web. Most of HSRP makes