We recently purchased an 10GBE SFP+ module (0U691D) for our 6248 so that we could use a 10GBE uplink with a 5548 but I have been unable to get a Link Up state between the two switches, we have identical intel SR SFP+ transceiver in each port, but I have been unable to get the link lights to come on anywhere.
On the 6248:
console#show switch
Management Standby Preconfig Plugged-in Switch Code
SW Status Status Model ID Model ID Status Version
--- ---------- --------- ------------- ------------- ------------- -----------
1 Mgmt Sw PCT6248 PCT6248 OK 3.3.5.5
console#show fiber-ports optical-transceiver
Output Input
Port Temp Voltage Current Power Power TX LOS
[Volt] [mA] [dBm] [dBm] Fault
------- ---- ------- ------- ------- ------- ----- ---
1/xg3 35.3 3.265 4.5 -4.482 -4.662 No No
1/xg4 37.9 3.275 4.9 -4.431 -4.888 No No
console#show stack-port
Configured Running
Stack Stack Link Link
Unit Interface Mode Mode Status Speed (Gb/s)
---- ---------------- ---------- ---------- ------------ ------------
1 xg1 Ethernet Ethernet Link Down Unknown
1 xg2 Ethernet Ethernet Link Down Unknown
1 xg3 Ethernet Ethernet Link Down Unknown
1 xg4 Ethernet Ethernet Link Down Unknown
console(config)#interface range ethernet 1/xg3-1/xg4
console(config-if)#speed ?
10 Force 10Mbps Operation
100 Force 100Mbps Operation
1000 Force 1000Mbps Operation
On the 5548:
console# show switch
Unit MAC Address Software Master Uplink Downlink Status
---- ----------------- ---------- -------- --------- --------- -------
1 d0:67:e5:93:ae:10 4.0.1.11 Enabled 2 2 backup
2 d0:67:e5:93:ad:07 4.0.1.11 Enabled 1 1 master
Topology is Ring
Stack image auto synchronization is enabled
console# show fiber-ports optical-transceiver detailed
Port Temp Voltage Current Output Input LOS [Volt] [mA] Power Power
[mWatt] [mWatt]
----------- ------ ------- ------- ------- ------- ---
te2/0/1 39 3.27 5.6 3.56 3.0 No
te2/0/2 42 3.31 5.13 3.57 3.4 No
console(config)# interface range te2/0/1-2
console(config-if-range)# speed
10 Force operation at 10 Mbps.
100 Force operation at 100 Mbps.
1000 Force operation at 1000 Mbps.
10000 Force operation at 10000 Mbps.
I have also tried to switch the TX and RX at then end of the cables but that makes the LOS go to YES. Any healp would be greatly appreciated, thanks.