Egress Shaping on 3750-Gigabit Ethernet Port

[prbhasin]

Our customer bought 10 Mbps Metro Ethernet services from the SP on a Gigabit Ethernet port and they are running into issues when they try shaping the Gigabit Ethernet port to 10Mbps.

Has anyone encountered a similar problem ?

Any feedback would be appreciated

[Edison Ortiz]

The regular 3750 switch support SRR Shaping, please follow the documentation:

http://www.cisco.com/en/US/docs/switches/lan/catalyst3750/software/release/12.2_44_se/configuration/guide/swqos.html

If you have the 3750 Metro, then you can configure hierarchical QoS

http://www.cisco.com/en/US/docs/switches/metro/catalyst3750m/software/release/12.2_44_se/configuration/guide/swqos.html#wp1466665

HTH,

__

Edison.

[prbhasin]

Thanks Edison for your response. I looked at these configuration documents. Actually the Customer is seeing a specific problem where on a 1000 Mbps port he is able to shape to say 100/ 500 Mbps but when he tries to shape that port to very low values like -- 10 Mbps etc that he is running into issues.

I was wondering if there is a lower limit on a Gig pot to what value can it be shaped

[Joseph W. Doherty]

Normal 3750 ports only support shaping in tiers (multiples of 6?), although the shape command allows 1% increments. I.e. you can't actually obtain the exact percentage you shape for.

If possible, hard code the port for 10 or 100, and then shape.

[prbhasin]

Thanks Joseph