nanog mailing list archives

Re: 7206 VXR NPE-G1 throughput


From: joel jaeggli <joelja () bogus com>
Date: Mon, 10 Feb 2014 08:07:17 -0800

On 2/10/14, 7:43 AM, Vlade Ristevski wrote:
We're still on the 12.4 train. I do use an ACL with less than 100
entries which handle BCP38 and block a few bad actors and private IPs on
the Internet. I will be moving the BCP38 ACL closer to the hosts before
the upgrade so the ACL will be a bit shorter in the future. We won't be
doing any QOS or IPv6 on it but it does take a full BGP table. I just
need it to last another year or two out of it if possible. I believe
this platform goes End of Support in  Spring 2016.

yeah so you'll probably make it on a pure pps basis.


On 2/10/2014 10:30 AM, Remco Bressers wrote:
On 02/10/2014 04:17 PM, Vlade Ristevski wrote:
We are looking to double the bandwidth on one of our circuits from
300Mbps to 600Mbps. We currently use a Cisco 7206VXR with an NPE-G1
card. These seem like very popular routers so I'm hoping a few
people on this list have them deployed. If you or a customer have
these deployed, how much bandwidth have you seen them handle? This
will be handling dorm traffic at a college so it's mostly download.
The 7206 handles our 300 Mbps circuit just fine, but we are moving it
to our 600Mbps circuit. At peak we've seen the following numbers for
that circuit:


   30 second input rate 559982000 bits/sec, 55809 packets/sec
   30 second output rate 55429000 bits/sec, 32598 packets/sec
      267756984712 packets input, 333325152556755 bytes, 0 no buffer

This is the interface that connects to our provider. As you can see
its almost all download traffic. Our ASR1002 handles it without a
sweat but I'm a little skeptical of whether the 7206 will hold up.
This depends on multiple variables. The 7200 is a single-CPU platform
where CPU can go sky-high when using features like ACL's, QoS, IPv6
and you name it.. Also, changing from IOS 12.4 to 15 increased
our CPU usage with another 10%+. Stick to the bare minimum of features
you really need and you will be fine.

Regards,

Remco Bressers
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