[nsp] Multicast Ghost
Cheung, Rick
Rick.Cheung@NextelPartners.com
Tue, 5 Nov 2002 12:13:31 -0600
This message is in MIME format. Since your mail reader does not understand
this format, some or all of this message may not be legible.
------_=_NextPart_001_01C284F7.0BDA9C60
Content-Type: text/plain;
charset="iso-8859-1"
Hi, I'd like to see if anyone else is seeing the same problems with
ghost multicast 7.5 that I'm seeing.
We run ghost multicast to image workstations without a problem in
sites that are served by a 2620, with a fractional T to the datacenter.
We run into problems with eigrp neighborship resets when we have
multi-homed sites (2 routers, 2 pairs of circuits each, at each site), and
excessively high cpu utilization > 90% over 5 minute interval on the 4000
with the L3 card.
We're using PIM dense mode everywhere, which I know is not very
efficient, but I'm told now that Sparse mode wont help the ghost multicast
problem either.
Why would ghost multicasting be fine off a site with lower-end
hardware than another site that has higher-end hardware?
Any input would be appreciated. There is less output from google on
this topic than one would expect.
Thanks,
Rick Cheung
NPI IT Wan Team, CCNP
------_=_NextPart_001_01C284F7.0BDA9C60
Content-Type: text/html;
charset="iso-8859-1"
Content-Transfer-Encoding: quoted-printable
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV=3D"Content-Type" CONTENT=3D"text/html; =
charset=3Diso-8859-1">
<META NAME=3D"Generator" CONTENT=3D"MS Exchange Server version =
5.5.2653.12">
<TITLE>Multicast Ghost</TITLE>
</HEAD>
<BODY>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">Hi, I'd like to see if anyone else is seeing =
the same problems with ghost multicast 7.5 that I'm seeing.</FONT>
</P>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">We run ghost multicast to image workstations =
without a problem in sites that are served by a 2620, with a fractional =
T to the datacenter.</FONT></P>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">We run into problems with eigrp neighborship =
resets when we have multi-homed sites (2 routers, 2 pairs of circuits =
each, at each site), and excessively high cpu utilization > 90% over =
5 minute interval on the 4000 with the L3 card.</FONT></P>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">We're using PIM dense mode everywhere, which =
I know is not very efficient, but I'm told now that Sparse mode wont =
help the ghost multicast problem either.</FONT></P>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">Why would ghost multicasting be fine off a =
site with lower-end hardware than another site that has higher-end =
hardware?</FONT></P>
<P> <FONT COLOR=3D"#0000FF" =
SIZE=3D2 FACE=3D"Verdana">Any input would be appreciated. There is less =
output from google on this topic than one would expect.</FONT>
</P>
<BR>
<BR>
<P><FONT COLOR=3D"#0000FF" SIZE=3D2 FACE=3D"Verdana">Thanks,</FONT>
<BR><FONT SIZE=3D2 FACE=3D"Arial">Rick Cheung</FONT>
<BR><I><FONT SIZE=3D1 FACE=3D"Arial">NPI IT Wan Team, CCNP</FONT></I>
</P>
</BODY>
</HTML>
------_=_NextPart_001_01C284F7.0BDA9C60--