SNA QOS

[naive.naive]

Hi All,

Need to know how can SNA traffic be prioritized??

Thanks.

[gpulos]

you can classify the traffic with MQC for Bandwidth or % of Bandwidth queuing.

you can use CBWFQ to prioritize traffic sessions into either LowBandwidth or HighBandwidth.

and for low speed links you can use LLQ which again classifies specific traffic to specific bandwidth.

see this link for more info:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1835/products_configuration_guide_book09186a00800c5e31.html

[naive.naive]

how do we classify??

access-list permit xxx??

[mjagos]

How do you classify depends on what protocol you use for transporting the SNA traffic over the IP. It's usually DLSW+. The DLSW+ ports are TCP/UDP 2065 and 2067 (depending whether DLSW+ is configured to use UDP or TCP).

If you use RSRB, ports are UDP/TCP 1987 - 1989 and 1996.

So your ACL for DLSW+ could look like this:

access-list 100 permit tcp any any eq 2065

access-list 100 permit tcp any any eq 2067

access-list 100 permit udp any any eq 2065

access-list 100 permit udp any any eq 2067

access-list 100 permit tcp any eq 2065 any

access-list 100 permit tcp any eq 2067 any

access-list 100 permit udp any eq 2065 any

access-list 100 permit udp any eq 2067 any

Similar for RSRB...

Regards,

M.