From: Georg Pauwen (pauwen@hotmail.com)
Date: Fri Jul 23 2004 - 04:18:55 GMT-3
Hello Richard,
Frame Relay does forward broadcasts, but it transmits them as so called
pseudobroadcasts, making use of a special broadcast queue, which operates
independently of the normal interface queue. This queue is configurable, so
you might want to try and tune it. The syntax for the interface mode command
is:
frame-relay broadcast-queue size byte-rate packet-rate
where the configurable parameters are:
size --> should be 20 per DLCI (in your case, with 12 sites, set it to 240)
byte-rate --> N/4 times the minimum remote access rate (measured in bytes
per second), where N is the number of DLCIs to which the broadcast must be
replicated. This is according to the Cisco documentation. In your case, with
12 DLCIs and an assumed minimum access rate, in bytes per second, of 64000,
this value should be 32000
packet-rate --> set this to e.g. 200
Check if this makes a difference; obviously this solution is based on the
assumption that broadcast traffic is dropped because of a broadcast queue
that is not large enough...
Regards,
Georg
>From: "Richard Anderson" <richard.p.anderson@sbcglobal.net>
>Reply-To: "Richard Anderson" <richard.p.anderson@sbcglobal.net>
>To: <ccielab@groupstudy.com>
>Subject: Broadcast
>Date: Thu, 22 Jul 2004 13:37:18 -0700
>
>We have 12 frame sites. I don't understand how I am able to send broadcast
>to
>all, but two sites. One thing I noticed is that two sites that I can't
>send
>broadcast to have 1720 with 12.0 IOS. The ones I can send broadcast to are
>running on 1602 with 11.1 IOS.
>
>When I say broadcast, I mean we have this software Neoware to locate all
>the
>thin clients (citrix) in the network by sending broadcasts.I mean we have
>this
>software where you type in 192.168.138.255 and it will broadcast to locate
>all
>the devices inside that network.
>
>I thought the routers don't forward broadcast then why is it doing it on
>1600
>series and not on 1720s. The configs look exactly same on both routers.I m
>confused.plz help!
>
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