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What do y'all know about the effects of implementing fhrp's (glbp, hsrp,
vrrp) WITH route diversity from the distribution (fhrp router) to the
internet. (which I'd imagine is a pretty typical scenario in HA nets)
I mean as packets arrive from the internet to the non-active fhrp router,
then
On 21/01/2013 16:56, Aaron wrote:
is it all about lower arp timeouts below 300 secs
so to artificially prop-up bridge tables and keep them fresh? My goodness
that's making arp very busy.
It's all about keeping the cam timeout on your switch higher than the arp
timeout on your routers and
On Mon, 21 Jan 2013, Aaron wrote:
How does constant unknown unicast flooding affect networks? Better yet,
how to design in mitigation ? is it all about lower arp timeouts below
300 secs so to artificially prop-up bridge tables and keep them fresh?
My goodness that's making arp very busy.
In short you'll run into unexpected congestion from flooded traffic
arriving on trunks it shouldn't be. You could also run into high CPU on
some devices due to excess traffic (but this is less likely since the
destination MAC will not match the receiving device and will be dropped on
the NIC, most
Message-
From: Mikael Abrahamsson [mailto:swm...@swm.pp.se]
Sent: Monday, January 21, 2013 11:18 AM
To: Aaron
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] unknown unicast flooding - particularly regarding
fhrp's
On Mon, 21 Jan 2013, Aaron wrote:
How does constant unknown unicast
Ha love it. Thanks Nick
What is the definition of large L2 domain please. ?
Aaron
-Original Message-
From: Nick Hilliard [mailto:n...@foobar.org]
Sent: Monday, January 21, 2013 11:12 AM
To: Aaron
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] unknown unicast flooding
On 1/21/13, Aaron aar...@gvtc.com wrote:
What do y'all know about the effects of implementing fhrp's (glbp, hsrp,
vrrp) WITH route diversity from the distribution (fhrp router) to the
internet. (which I'd imagine is a pretty typical scenario in HA nets)
Do you have enough bandwidth to the
On 1/21/13, Aaron aar...@gvtc.com wrote:
Arp timers are central, bridge timers are more distributed
Arp timers I believe are specific to svi/bvi/routed interfaces, bridge
timers I believe are more global and may not be vlan specific
Those 2 items would lead me to think arp timers would be
Hi,
On Mon, Jan 21, 2013 at 10:56:13AM -0600, Aaron wrote:
How does constant unknown unicast flooding affect networks? Better yet, how
to design in mitigation ? is it all about lower arp timeouts below 300 secs
so to artificially prop-up bridge tables and keep them fresh? My goodness
, 2013 11:12 AM
To: Aaron
Cc: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] unknown unicast flooding - particularly regarding
fhrp's
On 21/01/2013 16:56, Aaron wrote:
is it all about lower arp timeouts below 300 secs so to artificially
prop-up bridge tables and keep them fresh? My
...@puck.nether.net] On Behalf Of Lee
Sent: Monday, January 21, 2013 12:23 PM
To: cisco-nsp@puck.nether.net
Subject: Re: [c-nsp] unknown unicast flooding - particularly regarding
fhrp's
On 1/21/13, Aaron aar...@gvtc.com wrote:
Arp timers are central, bridge timers are more distributed
Arp timers I
about a year ago.
./Randy
--- On Mon, 1/21/13, Aaron aar...@gvtc.com wrote:
From: Aaron aar...@gvtc.com
Subject: Re: [c-nsp] unknown unicast flooding - particularly regarding fhrp's
To: 'Lee' ler...@gmail.com, cisco-nsp@puck.nether.net
Date: Monday, January 21, 2013, 2:04 PM
No arp entry
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