Hi Ian,
Thanks for the link and for sharing your experience. Essentially we are
upgrading these links because the current ADSL ones have been struggling
for some time and we are also looking at increasing activities (and
therefore increasing network traffic) in the near future. While we won't
be using 100Mbps from the start we will very probably be pushing the
10Mbps envelope within days/weeks of deploying the new link, so I guess
the time has come to replace the venerable 2600s :-)
As you said we could also use L3 switches and in fact this is probably
what we'll do since we only need packet switching and fire-walling (read
ACLs) in these remote sites.
Regards,
Terence
-------- Original Message --------
*Subject: *Re: [c-nsp] How do ACLs effect throughput
*From: *Mackinnon, Ian <[email protected]>
*To: *Terence Scott <[email protected]>, Cisco-NSP
<[email protected]>
*Date: *13 July 2011 02:46:39 PM
Hi Terence,
Check out the router performance guide at
http://www.google.co.uk/url?sa=t&source=web&cd=1&ved=0CBcQFjAA&url=http%
3A%2F%2Fwww.cisco.com%2Fweb%2Fpartners%2Fdownloads%2F765%2Ftools%2Fquick
reference%2Frouterperformance.pdf&ei=kZMdTrm2BMO1hAfK3Z3eBw&usg=AFQjCNEb
Z13eVCy9seOrR7CpkMb2YvxMfQ&sig2=sJONjQfXQJ7WNr7nddlcwg
It suggests a 2621 will max out at 18Mbits/sec with no features turned
on.
My experience is it will max out well before that.
You say you are upgrading to 100M, but what bandwidth do you expect to
use?
Realistically you are looking at a 29xx for that level, but don't forget
you could use a switch instead, depending on what features you need.
Ian
-----Original Message-----
From: [email protected] [mailto:cisco-nsp-
[email protected]] On Behalf Of Terence Scott
Sent: 13 July 2011 09:52
To: Cisco-NSP
Subject: [c-nsp] How do ACLs effect throughput
Dear all,
My organisation has two (old) Cisco 2600 series routers deployed in
two
remote sites, one 2620 and one 2621. So far these routers have been
performing very well, however we are now looking at substantially
increasing
the bandwidth of the WAN links that connect these two remote sites to
the
central office. At present these remote sites connect to the central
office via
4Mbps ADSL lines and we will be upgrading these to 100Mbps
(full-duplex)
optical fibre links. We are essentially trying to determine whether
these old
routers will still be able to handle the increased traffic load or
whether we
need to upgrade the routers as well. The information we have managed
to
find so far suggests that these routers would be able to cope if all
packet
switching is done in CEF.
The set-up in these remote sites is quite simple and we only use
extended IP
access lists in order to control access to certain VLANs.
Does anybody know whether these ACLs would cause the traffic to be
punted from CEF to process switching?
Many thanks
Terence
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