Hello,
Sorry if this is a dumb question but I'm new to the Nexus line of products. My issue is that I cannot get a 1 gig fiber link to a 3560 or 3750 to show up as connected after I upgraded my Nexus 3064 to the n3000-uk9.5.0.3.U2.2c NXOS. The 1 gig interfaces worked fine before I did the upgrade, and if I roll back to n3000-uk9.5.0.3.U1.1a they work fine. My 10 gig interfaces work fine. I'm stumped. If I hook up a link runner to the Nexus the interface comes up as connected but if I link it to a 3750 or 3560 I have no luck. I have done all the layer one stuff like verifiy SFP and fiber. And again if I roll back to the old NXOS it works fine.
I've been searching the forum for days and haven't found out anything. Here are a few commands to help out:
interface Ethernet1/3
switchport mode trunk
switchport trunk native vlan 555
speed 1000
TEST-NEXUS(config-if)# show int Eth 1/3 transceiver details
Ethernet1/3
transceiver is present
type is 1000base-SX
name is CISCO-FINISAR
part number is FTLF8519P2BCL-C4
revision is A
serial number is FNS143203RL
nominal bitrate is 1300 MBit/sec
Link length supported for 50/125um fiber is 550 m
Link length supported for 62.5/125um fiber is 270 m
cisco id is --
cisco extended id number is 4
Calibration info not available
TEST-NEXUS(config-if)# show int Eth 1/3
Ethernet1/3 is down (Link not connected)
Hardware: 1000/10000 Ethernet, address: 547f.ee1a.eb8a (bia 547f.ee1a.eb8a)
MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA
Port mode is trunk
auto-duplex, 1000 Mb/s, media type is 1G
Beacon is turned off
Input flow-control is off, output flow-control is off
Rate mode is dedicated
Switchport monitor is off
EtherType is 0x8100
Last link flapped never
Last clearing of "show interface" counters 00:35:35
30 seconds input rate 0 bits/sec, 0 bytes/sec, 0 packets/sec
30 seconds output rate 0 bits/sec, 0 bytes/sec, 0 packets/sec
Load-Interval #2: 5 minute (300 seconds)
input rate 0 bps, 0 pps; output rate 0 bps, 0 pps
RX
0 unicast packets 0 multicast packets 0 broadcast packets
0 input packets 0 bytes
0 jumbo packets 0 storm suppression packets
0 giants 0 input error 0 short frame 0 overrun 0 underrun
0 watchdog 0 if down drop
0 input with dribble 0 input discard(includes ACL drops)
0 Rx pause
TX
0 unicast packets 0 multicast packets 0 broadcast packets
0 output packets 0 bytes
0 jumbo packets
0 output errors 0 collision 0 deferred 0 late collision
0 lost carrier 0 no carrier 0 babble
0 Tx pause
0 interface resets
Any help would be very much appreciated!
