Comments on: GLBP Explained

By: Diwa

Diwa — Fri, 16 Sep 2011 01:03:15 +0000

Hi ,

One doubt i want to know how the GLBP knows the load balancing in the weighting , Suppose GLBP configured in 3 routers e.g .
In R1 weighting configured as 50
In R2 weighting 30
In R3 weighting 20
Suppose 100 PC in the network.how the AVG decide to whom need to assign the vMAC address.
For e.g if first 50 PC will receive vMAC of R1 for the request then 30 receive vMAC of R2 the 20 PC receive vMAC of R3 ?

By: Siddu

Siddu — Sun, 04 Sep 2011 06:49:13 +0000

Is Glbp use Per-paket or Per-destination method

By: prasanth

prasanth — Thu, 11 Aug 2011 12:32:28 +0000

got a god idea about the topic.
thanks

By: Andre Costa

Andre Costa — Mon, 01 Aug 2011 05:03:01 +0000

“Listen” state is related to listen the other AVFs status.

A AVF in listen state will continue to forward packets normally

By: Ranjan

Ranjan — Sun, 22 May 2011 06:54:11 +0000

Again you proved…:)

By: موتور جستجوی تالارگفتمان های فارسی » Blog Archive » Gateway Load Balancing Protocol

Mon, 14 Feb 2011 18:01:16 +0000

[...] #show glbp #show glbp brief You can download my topolgy and config files here. Read more: Wikipedida , Cisco , INE CCIE Blog [...]

By: Gateway Load Balancing Protocol

Gateway Load Balancing Protocol — Mon, 14 Feb 2011 17:55:53 +0000

[...] #show glbp brief You can download my topolgy and config files here. Read more: Wikipedida , Cisco , INE CCIE Blog منبع: http://www.1cisco.com I Love Netw0rk —————– CCNP CCNA Security MCITP MCSE [...]

By: milk

milk — Sun, 06 Feb 2011 16:18:25 +0000

@Nizar Makarem

AVG sends ARP reply using virtual MAC of its own as the frame’s source address.

By: Nizar Makarem

Nizar Makarem — Tue, 11 Jan 2011 06:05:09 +0000

Well, actually this is the best explanation I’ve read about GLBP, but my concern is this, think of layer 2:
Imagine you have 4 routers connected to a switch, every router to a different port on the switch, when the AVG responds to ARP requests with the virtual MAC of the AVF, the switch port that is connected to the AVG update its MAC table, and the switch thinks that this MAC address is associated with the port where the ARP response was received, in this case, the port where is connected the AVG, and not where it really is the AVF, it happens beacuse the switches associates the source MAC address of frames with the ports where they are received.
So, what am i missing? How does the AVG do for the switch to forward frames to ports which AVF are connected to?

By: Recurso de INE en "CCIE en castellano"

Recurso de INE en "CCIE en castellano" — Wed, 08 Dec 2010 23:39:42 +0000

[...] GLBP Explained [...]