For port-channel

Question

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

Answer 1

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