6506 configuration:
-------------------
Port-channel54 is up, line protocol is up (connected)
  Hardware is EtherChannel, address is 001d.a246.05e6 (bia 001d.a246.05e6)
  Description: 2GB Uplink to STL-I9-3560-4
  MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 2/255, rxload 3/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s
  input flow-control is off, output flow-control is off
  Members in this channel: Gi2/8 Gi3/7
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input never, output never, output hang never
  Last clearing of "show interface" counters 02:49:50
  Input queue: 0/2000/16384000/0 (size/max/drops/flushes); Total output drops: 427687936
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 24566000 bits/sec, 4363 packets/sec
  5 minute output rate 16491000 bits/sec, 4034 packets/sec
     4342470897 packets input, 50896702503 bytes, 0 no buffer
     Received 4626282715 broadcasts (25274 multicasts)
     4294901760 runts, 0 giants, 0 throttles
     16384000 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 0 multicast, 0 pause input
     0 input packets with dribble condition detected
     60794851 packets output, 20128766918 bytes, 0 underruns
     2361327616 output errors, 54525952 collisions, 0 interface resets
     0 babbles, 331350016 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out


interface Port-channel54
 description 2GB Uplink to STL-I9-3560-4
 switchport
 switchport trunk encapsulation dot1q
 no ip address
 mls qos trust dscp

interface GigabitEthernet2/8
 description Uplink to STL-I9-3560-4
 switchport
 switchport trunk encapsulation dot1q
 no ip address
 mls qos trust dscp
 channel-group 54 mode desirable

interface GigabitEthernet3/7
 description Uplink to STL-I9-3560-4
 switchport
 switchport trunk encapsulation dot1q
 no ip address
 mls qos trust dscp
 channel-group 54 mode desirable

------------------------------------------------------------------

3560 configuration:
-------------------
Port-channel1 is up, line protocol is up (connected)
  Hardware is EtherChannel, address is 001d.a1b2.5a33 (bia 001d.a1b2.5a33)
  Description: Channel group to Core 1 6506
  MTU 1500 bytes, BW 2000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 3/255, rxload 2/255
  Encapsulation ARPA, loopback not set
  Full-duplex, 1000Mb/s, link type is auto, media type is unknown
  input flow-control is off, output flow-control is unsupported
  Members in this channel: Gi0/49 Gi0/51
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 00:00:00, output 00:00:03, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/75/0/0 (size/max/drops/flushes); Total output drops: 0
  Queueing strategy: fifo
  Output queue: 0/40 (size/max)
  5 minute input rate 15851000 bits/sec, 4000 packets/sec
  5 minute output rate 24592000 bits/sec, 4402 packets/sec
     440296604 packets input, 234282365046 bytes, 0 no buffer
     Received 49636418 broadcasts (0 multicasts)
     0 runts, 0 giants, 0 throttles
     0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
     0 watchdog, 38627501 multicast, 0 pause input
     0 input packets with dribble condition detected
     470264074 packets output, 401916618261 bytes, 0 underruns
     0 output errors, 0 collisions, 1 interface resets
     0 babbles, 0 late collision, 0 deferred
     0 lost carrier, 0 no carrier, 0 PAUSE output
     0 output buffer failures, 0 output buffers swapped out

interface Port-channel1
 description Channel group to Core 1 6506
 switchport trunk encapsulation dot1q
 switchport mode dynamic desirable

interface GigabitEthernet0/49
 description Uplink to Core 1 6506
 switchport trunk encapsulation dot1q
 switchport mode dynamic desirable
 mls qos trust dscp
 channel-group 1 mode desirable

interface GigabitEthernet0/51
 description Uplink to Core 1 6506
 switchport trunk encapsulation dot1q
 switchport mode dynamic desirable
 mls qos trust dscp
 channel-group 1 mode desirable