Re: HSRP for a switch [7:14164]
That's the config I use as well. However, (and I'm not flaming you) that is not what I was speaking of, nor what what I believe this gentleperson was asking about. The original poster said "I want to have a second switch with a copy of the primary's configuration and take over automatically once the primary fails". I was speculating on a way to have two completely separate chassis (switches/MSFCs) create a "mirror" and have one that sits in standby while the other is active. What you have there is 2 MSFCs using HSRP with VLANs load balanced across them. As I said in my eariler post, "Unless you have the end devices connected to both switches, you're screwed". You have end devices (your servers) connected to both switches, which is the *only* way this HSRP setup will provide complete redundancy (actually, it's not the HSRP that provides it, but the fact that your end devices are connected to both switches that provides that real redundancy). Mike W. "Perry J. Lucas" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Yes it is possible here. Here is a sample configuration that I have > running on a pair of Cat6509 with Sup2 MSFC2: > > Switch One > -- > interface Vlan340 > ip address 10.120.4.3 255.255.255.0 > no ip redirects > standby 34 priority 99 preempt > standby 34 ip 10.120.4.1 > > interface Vlan350 > ip address 10.120.5.2 255.255.255.0 > no ip redirects > standby 35 preempt > standby 35 ip 10.120.5.1 > > Switch Two > -- > interface Vlan340 > ip address 10.120.4.2 255.255.255.0 > no ip redirects > standby 34 preempt > standby 34 ip 10.120.4.1 > > interface Vlan350 > ip address 10.120.5.3 255.255.255.0 > no ip redirects > standby 35 priority 99 preempt > standby 35 ip 10.120.5.1 > > > > For layer two configuration, I have the gigabit ports on the sup > connected as ISL trunks with backbone fast. Servers are dual niced into > each chassis. > > Perry J. Lucas > > > > -Original Message- > From: Michael L. Williams [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, July 31, 2001 8:39 PM > To: [EMAIL PROTECTED] > Subject: Re: HSRP for a switch [7:14164] > > > This is possible with 2 sups in the same chassis, however, if you have > two separate chassis with their own Sups, then I don't think it's > possible to have one act as a "mirror" for the other. You could > configure the RSMs (MSFC's, whatever) with HSRP, but that wouldn't do > what you said you wanted. Even with HSRP, the "other" interfaces on each > RSM would need to be configured with their own IPs, etc, thus not > satisfying your requirement to have "a second switch with a copy of the > primary's configuration". Unless you have the end devices connected to > both switches, your screwed anyway if a sup dies (unless you have a > redundant sup installed in which case you're not utilizing the "other" > switch). > > I do not believe that what you're looking for is possible with to > completely separate switches like that. > > Mike W. > > "Jason Kinney" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > I want to protect from a total failure in the switch such as sup, loss > > > of power (if UPS and redundant PS is not present), etc. > > > > I am not trying to failover an interface (spanning tree) > > > > I want to have a second switch with a copy of the primary's > > configuration and take over automatically once the primary fails. > > > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > Patrick Ramsey > > Sent: Monday, July 30, 2001 8:09 AM > > To: [EMAIL PROTECTED] > > Subject: Re: HSRP for a switch [7:14164] > > > > > > Maybe I am confused > > > > If yo uwant redundant switches, you would implement spanning tree... > > This > is > > at layer two...not three, where routing takes place. > > > > Now if you mean using it on say a cat 6509 with a routing module, then > > > yes you can implement it. But it would still be at layer three and > > not two. You would not create redundant switches. Again, this is > > where spanning > tree > > comes into play. > > > > -Patrick > > > > >>> "Spencer Plantier" 07/30/01 10:39AM >>> > > yes you can > > > > --- Jason Kinney wrote: > > > Can you use HSRP to backup a switch as you would a >
RE: HSRP for a switch [7:14164]
Yes it is possible here. Here is a sample configuration that I have running on a pair of Cat6509 with Sup2 MSFC2: Switch One -- interface Vlan340 ip address 10.120.4.3 255.255.255.0 no ip redirects standby 34 priority 99 preempt standby 34 ip 10.120.4.1 interface Vlan350 ip address 10.120.5.2 255.255.255.0 no ip redirects standby 35 preempt standby 35 ip 10.120.5.1 Switch Two -- interface Vlan340 ip address 10.120.4.2 255.255.255.0 no ip redirects standby 34 preempt standby 34 ip 10.120.4.1 interface Vlan350 ip address 10.120.5.3 255.255.255.0 no ip redirects standby 35 priority 99 preempt standby 35 ip 10.120.5.1 For layer two configuration, I have the gigabit ports on the sup connected as ISL trunks with backbone fast. Servers are dual niced into each chassis. Perry J. Lucas -Original Message- From: Michael L. Williams [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 31, 2001 8:39 PM To: [EMAIL PROTECTED] Subject: Re: HSRP for a switch [7:14164] This is possible with 2 sups in the same chassis, however, if you have two separate chassis with their own Sups, then I don't think it's possible to have one act as a "mirror" for the other. You could configure the RSMs (MSFC's, whatever) with HSRP, but that wouldn't do what you said you wanted. Even with HSRP, the "other" interfaces on each RSM would need to be configured with their own IPs, etc, thus not satisfying your requirement to have "a second switch with a copy of the primary's configuration". Unless you have the end devices connected to both switches, your screwed anyway if a sup dies (unless you have a redundant sup installed in which case you're not utilizing the "other" switch). I do not believe that what you're looking for is possible with to completely separate switches like that. Mike W. "Jason Kinney" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I want to protect from a total failure in the switch such as sup, loss > of power (if UPS and redundant PS is not present), etc. > > I am not trying to failover an interface (spanning tree) > > I want to have a second switch with a copy of the primary's > configuration and take over automatically once the primary fails. > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Patrick Ramsey > Sent: Monday, July 30, 2001 8:09 AM > To: [EMAIL PROTECTED] > Subject: Re: HSRP for a switch [7:14164] > > > Maybe I am confused > > If yo uwant redundant switches, you would implement spanning tree... > This is > at layer two...not three, where routing takes place. > > Now if you mean using it on say a cat 6509 with a routing module, then > yes you can implement it. But it would still be at layer three and > not two. You would not create redundant switches. Again, this is > where spanning tree > comes into play. > > -Patrick > > >>> "Spencer Plantier" 07/30/01 10:39AM >>> > yes you can > > --- Jason Kinney wrote: > > Can you use HSRP to backup a switch as you would a > > router? > > > > Jason Kinney > > 925-961-0223 > [EMAIL PROTECTED] > > > = > Spencer Plantier > Internet Solutions Engineer > Voice 919-949-9993 > Cell 919-696-8848 > > __ > Do You Yahoo!? > Make international calls for as low as $.04/minute with Yahoo! > Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14592&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP for a switch [7:14164]
This is possible with 2 sups in the same chassis, however, if you have two separate chassis with their own Sups, then I don't think it's possible to have one act as a "mirror" for the other. You could configure the RSMs (MSFC's, whatever) with HSRP, but that wouldn't do what you said you wanted. Even with HSRP, the "other" interfaces on each RSM would need to be configured with their own IPs, etc, thus not satisfying your requirement to have "a second switch with a copy of the primary's configuration". Unless you have the end devices connected to both switches, your screwed anyway if a sup dies (unless you have a redundant sup installed in which case you're not utilizing the "other" switch). I do not believe that what you're looking for is possible with to completely separate switches like that. Mike W. "Jason Kinney" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I want to protect from a total failure in the switch such as sup, loss of > power (if UPS and redundant PS is not present), etc. > > I am not trying to failover an interface (spanning tree) > > I want to have a second switch with a copy of the primary's configuration > and take over automatically once the primary fails. > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Patrick Ramsey > Sent: Monday, July 30, 2001 8:09 AM > To: [EMAIL PROTECTED] > Subject: Re: HSRP for a switch [7:14164] > > > Maybe I am confused > > If yo uwant redundant switches, you would implement spanning tree... This is > at layer two...not three, where routing takes place. > > Now if you mean using it on say a cat 6509 with a routing module, then yes > you can implement it. But it would still be at layer three and not two. > You would not create redundant switches. Again, this is where spanning tree > comes into play. > > -Patrick > > >>> "Spencer Plantier" 07/30/01 10:39AM >>> > yes you can > > --- Jason Kinney wrote: > > Can you use HSRP to backup a switch as you would a > > router? > > > > Jason Kinney > > 925-961-0223 > [EMAIL PROTECTED] > > > = > Spencer Plantier > Internet Solutions Engineer > Voice 919-949-9993 > Cell 919-696-8848 > > __ > Do You Yahoo!? > Make international calls for as low as $.04/minute with Yahoo! Messenger > http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14421&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP for a switch [7:14164]
I'm just trying to understand why you would not be able to do that, with "spanning tree" and 2 identical switches. Santosh Koshy ""Jason Kinney"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I want to protect from a total failure in the switch such as sup, loss of > power (if UPS and redundant PS is not present), etc. > > I am not trying to failover an interface (spanning tree) > > I want to have a second switch with a copy of the primary's configuration > and take over automatically once the primary fails. > > > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Patrick Ramsey > Sent: Monday, July 30, 2001 8:09 AM > To: [EMAIL PROTECTED] > Subject: Re: HSRP for a switch [7:14164] > > > Maybe I am confused > > If yo uwant redundant switches, you would implement spanning tree... This is > at layer two...not three, where routing takes place. > > Now if you mean using it on say a cat 6509 with a routing module, then yes > you can implement it. But it would still be at layer three and not two. > You would not create redundant switches. Again, this is where spanning tree > comes into play. > > -Patrick > > >>> "Spencer Plantier" 07/30/01 10:39AM >>> > yes you can > > --- Jason Kinney wrote: > > Can you use HSRP to backup a switch as you would a > > router? > > > > Jason Kinney > > 925-961-0223 > [EMAIL PROTECTED] > > > = > Spencer Plantier > Internet Solutions Engineer > Voice 919-949-9993 > Cell 919-696-8848 > > __ > Do You Yahoo!? > Make international calls for as low as $.04/minute with Yahoo! Messenger > http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14308&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP for a switch [7:14164]
I want to protect from a total failure in the switch such as sup, loss of power (if UPS and redundant PS is not present), etc. I am not trying to failover an interface (spanning tree) I want to have a second switch with a copy of the primary's configuration and take over automatically once the primary fails. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Patrick Ramsey Sent: Monday, July 30, 2001 8:09 AM To: [EMAIL PROTECTED] Subject: Re: HSRP for a switch [7:14164] Maybe I am confused If yo uwant redundant switches, you would implement spanning tree... This is at layer two...not three, where routing takes place. Now if you mean using it on say a cat 6509 with a routing module, then yes you can implement it. But it would still be at layer three and not two. You would not create redundant switches. Again, this is where spanning tree comes into play. -Patrick >>> "Spencer Plantier" 07/30/01 10:39AM >>> yes you can --- Jason Kinney wrote: > Can you use HSRP to backup a switch as you would a > router? > > Jason Kinney > 925-961-0223 [EMAIL PROTECTED] = Spencer Plantier Internet Solutions Engineer Voice 919-949-9993 Cell 919-696-8848 __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14191&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP for a switch [7:14164]
fyi see http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1214ea1/3550scg/sw hsrp.htm#25516 & http://www.cisco.com/univercd/cc/td/doc/product/lan/c3550/1214ea1/3550scg/sw clus.htm#73115 (watch the wrapping) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Patrick Ramsey Sent: Monday, July 30, 2001 11:09 AM To: [EMAIL PROTECTED] Subject: Re: HSRP for a switch [7:14164] Maybe I am confused If yo uwant redundant switches, you would implement spanning tree... This is at layer two...not three, where routing takes place. Now if you mean using it on say a cat 6509 with a routing module, then yes you can implement it. But it would still be at layer three and not two. You would not create redundant switches. Again, this is where spanning tree comes into play. -Patrick >>> "Spencer Plantier" 07/30/01 10:39AM >>> yes you can --- Jason Kinney wrote: > Can you use HSRP to backup a switch as you would a > router? > > Jason Kinney > 925-961-0223 [EMAIL PROTECTED] = Spencer Plantier Internet Solutions Engineer Voice 919-949-9993 Cell 919-696-8848 __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14190&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP for a switch [7:14164]
Maybe I am confused If yo uwant redundant switches, you would implement spanning tree... This is at layer two...not three, where routing takes place. Now if you mean using it on say a cat 6509 with a routing module, then yes you can implement it. But it would still be at layer three and not two. You would not create redundant switches. Again, this is where spanning tree comes into play. -Patrick >>> "Spencer Plantier" 07/30/01 10:39AM >>> yes you can --- Jason Kinney wrote: > Can you use HSRP to backup a switch as you would a > router? > > Jason Kinney > 925-961-0223 [EMAIL PROTECTED] = Spencer Plantier Internet Solutions Engineer Voice 919-949-9993 Cell 919-696-8848 __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14177&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: HSRP for a switch [7:14164]
yes you can --- Jason Kinney wrote: > Can you use HSRP to backup a switch as you would a > router? > > Jason Kinney > 925-961-0223 [EMAIL PROTECTED] = Spencer Plantier Internet Solutions Engineer Voice 919-949-9993 Cell 919-696-8848 __ Do You Yahoo!? Make international calls for as low as $.04/minute with Yahoo! Messenger http://phonecard.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=14170&t=14164 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
