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Webcast-Catalyst9k
New Member

Switch Problem

Hi,

I have 2 Switches 2924XL connected with 2 Fiber Link on ports 23 and 24, the port 24 led is Ambar, but I can not find anything wrong, the show command is :

Switch03#sho int fast 0/24

FastEthernet0/24 is up, line protocol is up

Hardware is Fast Ethernet, address is 00d0.06fa.d95a (bia 00d0.06fa.d95a)

MTU 1500 bytes, BW 100000 Kbit, DLY 100 usec, rely 255/255, load 1/255

Encapsulation ARPA, loopback not set, keepalive not set

Full-duplex, 100Mb/s

ARP type: ARPA, ARP Timeout 04:00:00

Last input 00:00:00, output 00:00:18, output hang never

Last clearing of "show interface" counters 05:42:17

Queueing strategy: fifo

Output queue 0/40, 0 drops; input queue 0/75, 0 drops

5 minute input rate 9000 bits/sec, 7 packets/sec

5 minute output rate 0 bits/sec, 0 packets/sec

297162 packets input, 72265070 bytes, 0 no buffer

Received 131109 broadcasts, 0 runts, 0 giants, 0 throttles

0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored, 0 abort

0 watchdog, 18250 multicast

0 input packets with dribble condition detected

348665 packets output, 109971976 bytes, 0 underruns

0 output errors, 0 collisions, 0 interface resets

0 babbles, 0 late collision, 0 deferred

0 lost carrier, 0 no carrier

0 output buffer failures, 0 output buffers swapped out

Anyone can help me ?

Thanks,

Alex

7 REPLIES
Cisco Employee

Re: Switch Problem

If you connect 2 switches via 2 connections with the same VLAN configuration, one port will go into the STP blocking state and go appear on the front panel LED. This is correct behavior.

New Member

Re: Switch Problem

Thanks for your reply, but what means STP blocking ? The 2 connections is load balanced ? If no, how can I do it ?

Thanks,

Alex

New Member

Re: Switch Problem

Do you have Ether Channel configured between switches?

New Member

Re: Switch Problem

No, How can I do it ?

Thanks,

Alex

New Member

Re: Switch Problem

If you have CatOS (5500, 6500, 2900G switches)

http://www.cisco.com/warp/public/473/68.html

If you have switches with Native IOS2900XL, 3500XL

http://www.cisco.com/warp/customer/473/131.html

If you are trying to configure ether channel between CatOS and 2900XL/3500XL

http://www.cisco.com/warp/customer/473/44.html

If you have any questions e-mail me directly :khramov@nsuok.edu

New Member

Re: Switch Problem

Does th light stay amber all the time, or only for a few minutes when the switch first boots up?

Daniel,

New Member

Re: Switch Problem

Sorry I forgot to add, if the light stays amber all the time then you have a configuration conflict between the f0/24 interface and the device at the other end of the link. STP only turns the light amber whilst it recomputes the listening and learning states (about 30 secs). Amber means the link has come up but is not functioning

Daniel,

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