ip-precedence for management traffic

Luca Tosolini bit.gossip at chello.nl
Tue Dec 29 12:37:56 CST 2009

my inquiry was very specific and bounded to the following assumptions:
- in-band management
- not possible to filter customer traffic, certainly not for somebody
else's customer.
- IP

In this case diffserv can help prioritize management plane traffic over
user traffic. To do that only ipp6 and ipp7 values are available for non
user traffic.
IPP6 is used by default for routing protocols, that is control plane; so
probably it is better not to mess around with it.
This leaves to IPP7 for management plane traffic, value that I can not
recall of having seen used by any application/protocol.

What is the general opinion about this?


On Tue, 2009-12-29 at 12:02 +0100, Luca Tosolini wrote:
> Experts,
> what is the general opinion of using ipp 7 'network control' for
> management traffic like: telnet ssh snmp .....
> The idea is that ipp 0 1 2 3 4 5 are used for user traffic
> ipp = 6 is used by default by routing protocols like BGP, OSPF, LDP ...
> this leaves out only ipp 7 for management traffic, on the premise that
> routing and management should not share the same queue and
> resources.....
> Thanks,
> Luca.

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