Re: 9200L switch connection problem - Page 2

Jovana · ‎08-08-2022

Hello

We have a problem with Cisco switch 9200L and need help.

The problem is that the 9200L switch can not be recognized on our distributive switch 6506.
When we connect one of the 9200L switches, it doesn`t work, but the other 9200L switch, with the same configuration on that interface and same IOS, can be connected.
The switch that cannot connect, connects for a period of time and then loses connection without obvious reason.

I tried to upgrade and downgrade the IOS version but that doesn`t work either. The only difference, that I notice, is the Bootstrap version. I also tried to put the IOS from the switch that connects on the one that doesn`t, but without success.

Version and configuration on the distributive switch is:

Cisco IOS Software, s72033_rp Software (s72033_rp-ADVIPSERVICESK9_WAN-M), Version 12.2(33)SXJ2, RELEASE SOFTWARE (fc4)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 1986-2011 by Cisco Systems, Inc.
Compiled Wed 14-Dec-11 19:51 by prod_rel_team

ROM: System Bootstrap, Version 12.2(17r)SX7, RELEASE SOFTWARE (fc1)
cisco WS-C6506 (R7000) processor (revision 3.1) with 458720K/65536K bytes of memory.


interface GigabitEthernet4/10
switchport
switchport access vlan 671
switchport trunk encapsulation dot1q
switchport trunk native vlan 671
switchport trunk allowed vlan 671-673
switchport mode trunk
logging event link-status
logging event bundle-status

Version and configuration on the 9200L switch is:

Cisco IOS XE Software, Version 16.12.04
Cisco IOS Software [Gibraltar], Catalyst L3 Switch Software (CAT9K_LITE_IOSXE), Version 16.12.4, RELEASE SOFTWARE (fc5)
ROM: IOS-XE ROMMON
BOOTLDR: System Bootstrap, Version 17.8.1r [FC5], RELEASE SOFTWARE (P)

interface GigabitEthernet1/1/1
switchport access vlan 671
switchport trunk native vlan 671
switchport trunk allowed vlan 671,672
switchport mode trunk
logging event bundle-status

Can someone point me in the direction of a solution to the problem?

Jovana · ‎08-23-2022

Thank you for the quick replies

GigabitEthernet4/10 is down, line protocol is down (notconnect)
  Hardware is C6k 1000Mb 802.3, address is ---
  MTU 1500 bytes, BW 1000000 Kbit, DLY 10 usec,
     reliability 255/255, txload 0/255, rxload 0/255
  Encapsulation ARPA, loopback not set
  Keepalive set (10 sec)
  Full-duplex, 1000Mb/s, media type is LH
  input flow-control is off, output flow-control is off
  Clock mode is auto
  ARP type: ARPA, ARP Timeout 04:00:00
  Last input 2w0d, output 2w0d, output hang never
  Last clearing of "show interface" counters never
  Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 23035
  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
     2093550059 packets input, 692412573667 bytes, 0 no buffer
     Received 40356574 broadcasts (21607738 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
     2963371770 packets output, 2789916335786 bytes, 0 underruns
     0 output errors, 0 collisions, 12 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

Leo Laohoo · ‎08-23-2022

@Jovana wrote:
Cable is single mode. It is direct connection to distributive switch, with a 5 meter cable

A 5 METRE Single-Mode fibre cable? Serious?

Jovana · ‎08-23-2022

Yes, because that is just for testing

Leo Laohoo · ‎08-23-2022

@Jovana wrote:
Yes, because that is just for testing

Switch to MM optics & MM patch cords and see if the ports go up or not.

nicolacomino · ‎03-16-2024

have you no alerts when connecting the two SFP each other?

once, in my experience, a SFP was 'blinded' by too much RX power... you can control with "sh inter transceiver detail" and, in case, put an attenuator on rx (rx level must be -3.0 / -20.0 dBm)