I have a 891F router that was intended to connect via the SFP port to a IE3000-4TC. One pair of SFPs (GLC-FE-100LX) were purchased. Both appeared as compatible in the compatibility matrix.
However on the 891F I have speed 100 hard set, unable to change or remove. I do get some logging results;
c891f(config-if)#
*Nov 15 12:28:53.727: %LINK-3-UPDOWN: Interface GigabitEthernet8, changed state to up
*Nov 15 12:28:54.727: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet8, changed state to up
*Nov 15 12:28:57.727: %LINEPROTO-5-UPDOWN: Line protocol on Interface GigabitEthernet8, changed state to down
*Nov 15 12:28:58.727: %LINK-3-UPDOWN: Interface GigabitEthernet8, changed state to down
c891f(config-if)#
On the IE3000 I see nothing logged for this port. For this switch I have;
interface GigabitEthernet1/1
switchport access vlan 2
ip device tracking maximum 0
media-type sfp
!
IE3000(config-if)#do sh int gig 1/1
GigabitEthernet1/1 is down, line protocol is down (notconnect)
Hardware is Gigabit Ethernet, address is 081f.f358.2c81 (bia 081f.f358.2c81)
MTU 1500 bytes, BW 10000 Kbit/sec, DLY 1000 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Auto-duplex, Auto-speed, link type is force-up, media type is 1000BaseLX SFP
input flow-control is off, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input never, output never, 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 0 bits/sec, 0 packets/sec
5 minute output rate 0 bits/sec, 0 packets/sec
0 packets input, 0 bytes, 0 no buffer
Received 0 broadcasts (0 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 0 multicast, 0 pause input
0 input packets with dribble condition detected
0 packets output, 0 bytes, 0 underruns
0 output errors, 0 collisions, 1 interface resets
0 unknown protocol drops
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
IE3000(config-if)#
So, are one of the SFPs incompatible? Why does the IE3000 interface say 1000BaseLX? Is this the problem, the IE3000 trying connect at gig speeds where as the 891F is set to 100? I really thought this would be a simple matter of setting port to sfp media, and maybe setting speed (which I can not seem to change anyways)
For the 891F;
interface GigabitEthernet8
ip address dhcp
no ip redirects
no ip unreachables
no ip proxy-arp
ip flow ingress
ip nat outside
ip inspect DEFAULT100 out
ip virtual-reassembly in
duplex full
speed 100
media-type sfp
!
