From: Keane, James (James.Keane@agriculture.gov.ie)
Date: Thu Sep 01 2005 - 12:32:36 GMT-3
Good point, I learn something new everyday !
so basically the HSRP Standby group number has to be unique ONLY across the
broadcast domain and NOT the entire device..
so
int vlan 1
10.0.1.X/24
standby 1
int vlan 2
10.0.2.X/24
standby 2
int vlan 3
10.0.3.X/24
standby 1
is perfectly ok .. interesting, makes sense considering it uses link local
multicast which are non routable !
feel a bit stupid now !
I suppose the only time it could get a bit complicated is when you start
tracking ..
Luckily I dont need to do that !
Many Thanks Kev & Danny !
James
-----Original Message-----
From: kevin gannon [mailto:kgannon@gmail.com]
Sent: 01 September 2005 16:21
To: Keane, James
Subject: Re: OT: HSRP V VRRP
Have a look at the below depending on what you are upto its unlikely you
will hit the 16 limit:
http://www.cisco.com/en/US/products/hw/switches/ps700/products_qanda_item0918
6a008011c6bb.shtml#q4
Unless maybe you have lots of secondaries in a funny config.
Regards
Kevin
On 9/1/05, Keane, James < James.Keane@agriculture.gov.ie> wrote:
I have two supervisors - SUP1A and a SUP2 in two 6506's
The SUP1A supports 256 standby groups for HSRP
the SUP2 only supports 16 (hardware limitation)
I have 26 standby groups.
If I upgrade the images, and use VRRP, will I still have a problem ?
Can't find 'diddly-squat' on the site about VRRP limitations with SUP2 ..
Just curious to see if anyone has come across this little chestnut before ?
Regards
James Keane
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