for port-channel

[sg_network]

Can I join Layer 2 MEC port channel with 10G SR and LR together?

We are thinking of  using VSS setup.

VSS with Server Farm switches.

VSS sw1 and sw2 are in different building.

in order to save cost..

Server farm 1 with VSS sw1 will use 10G SR.

Server farm 1 with VSS sw2 will use 10G LR.

But I need to bundle that 10G SR and LR together to form L2 MEC..

Thanks,

John

[Julio Garcia]

hi John,

yes you can

one thing you need to check  is that the qos scheduling match on the interfaces , they can differ depending on what cards they are on .....ie below (in bold)

even if they dont match --  there is a command to ignore this in etherchannel formation -- i can dig up if you need.

#sh int te 1/5/2 capabilities

TenGigabitEthernet1/5/2

  Model:                 WS-X6708-10GE

  Type:                  10Gbase-SR

  Speed:                 10000

  Duplex:                full

  Trunk encap. type:     802.1Q,ISL

  Trunk mode:            on,off,desirable,nonegotiate

  Channel:               yes

  Broadcast suppression: percentage(0-100)

  Flowcontrol:           rx-(off,on),tx-(off,on)

  Membership:            static

  Fast Start:            yes

  QOS scheduling:        rx-(8q4t), tx-(1p7q4t)

  QOS queueing mode:     rx-(cos,dscp), tx-(cos,dscp)

  CoS rewrite:           yes

  ToS rewrite:           yes

  Inline power:          no

  Inline power policing: no

  SPAN:                  source/destination

  UDLD                   yes

  Link Debounce:         yes

  Link Debounce Time:    yes

  Ports-in-ASIC (Sub-port ASIC) : 2-3,6,8 (2)

  Remote switch uplink:  no

  Dot1x:                 no

  Port-Security:         yes

[andtoth]

The command is mls qos channel-consistency.

http://www.cisco.com/en/US/docs/ios/qos/command/reference/qos_m2.html#wp1041289

Andras