Wow, thanks! That is right on the spot... Best Regards,
Bojan Zivancevic Network Engineer ---- Comutel d.o.o. Omladinskih brigada 65v 11070 Belgrade SERBIA Tel: +381 11 217 8000 Ext.109 Mob: +381 64 646 8401 Fax: +381 11 2164641 http://www.comutel.co.rs<http://www.comutel.co.rs/> From: Cristian Nedelcu [mailto:[email protected]] Sent: Tuesday, July 06, 2010 18:53 To: Bojan Zivancevic Cc: CCIE_RS OnlineStudyList Subject: Re: [OSL | CCIE_RS] IGMP query interval? How much? word by word from Beau's book "Query Interval timer---This timer was changed to 125 seconds. Early implementations used a value of 60 seconds. This discrepancy can cause a problem when a router with an early implementation is operating on the same LAN as a router that is the IGMP Querier and is IGMPv2 compliant. In this case, the early implementation router may believe erroneously that the IGMP Querier (the IGMPv2-compliant router) has gone down because the General Queries are 125 seconds apart." On Tue, Jul 6, 2010 at 7:29 PM, Bojan Zivancevic <[email protected]<mailto:[email protected]>> wrote: Another question for you multicast hedonists. :) Is the query interval by default equal to 60 or to 125 seconds? I found several references and still I'm not sure. Does it matter if it is IGMP version 1 or 2? Somewhere it says it is 60 sec, but in other books they are mentioning Other Querier Present interval which is by default (2x Query interval) + ½ query response interval = (2x 125sec) + ½ 10sec = 255sec ? Best Regards, Bojan Zivancevic Network Engineer _______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com<http://www.ipexpert.com>
_______________________________________________ For more information regarding industry leading CCIE Lab training, please visit www.ipexpert.com
