Hi everyone,
A few days ago, i changed two WS-C2960-24TT-L switches with two stacked Catalyst 9200L switches.
Ever since i made this change, i noticed that every single device has a really slow connection, i'm losing ping to the devices, SSH is really slow, RDP is really slow etc.
I have 2 uplinks, GigabitEtherner1/1/1 is to our CORE switch, GigabitEthernet2/1/4 is to other ACCESS switch.
I tried troubleshooting the switch/ports, but can't come up with an idea what could be the issue.
Here is the output of the 2 uplink ports:
GigabitEthernet1/1/1 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 3c13.cc5f.ec31 (bia 3c13.cc5f.ec31)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:00, output 00:00:08, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 74
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 3637000 bits/sec, 709 packets/sec
5 minute output rate 1056000 bits/sec, 404 packets/sec
95814614 packets input, 70190377800 bytes, 0 no buffer
Received 11880694 broadcasts (8867720 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 8867720 multicast, 0 pause input
0 input packets with dribble condition detected
66824525 packets output, 12782824914 bytes, 0 underruns
Output 4969609 broadcasts (0 multicasts)
0 output errors, 0 collisions, 4 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
GigabitEthernet2/1/4 is up, line protocol is up (connected)
Hardware is Gigabit Ethernet, address is 802d.bfed.8434 (bia 802d.bfed.8434)
MTU 1500 bytes, BW 1000000 Kbit/sec, DLY 10 usec,
reliability 255/255, txload 1/255, rxload 1/255
Encapsulation ARPA, loopback not set
Keepalive not set
Full-duplex, 1000Mb/s, link type is auto, media type is 1000BaseSX SFP
input flow-control is on, output flow-control is unsupported
ARP type: ARPA, ARP Timeout 04:00:00
Last input 00:00:15, output 00:00:00, output hang never
Last clearing of "show interface" counters never
Input queue: 0/2000/0/0 (size/max/drops/flushes); Total output drops: 7870
Queueing strategy: fifo
Output queue: 0/40 (size/max)
5 minute input rate 103000 bits/sec, 65 packets/sec
5 minute output rate 351000 bits/sec, 247 packets/sec
30022847 packets input, 17905254827 bytes, 0 no buffer
Received 7811898 broadcasts (3510541 multicasts)
0 runts, 0 giants, 0 throttles
0 input errors, 0 CRC, 0 frame, 0 overrun, 0 ignored
0 watchdog, 3510541 multicast, 0 pause input
0 input packets with dribble condition detected
36110786 packets output, 14828748859 bytes, 0 underruns
Output 3778534 broadcasts (0 multicasts)
0 output errors, 0 collisions, 2 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
I don't see any issues with the uplink ports, could there be an issue with the stacking configuration?
show switch
Switch/Stack Mac Address : 3c13.cc5f.ec00 - Local Mac Address
Mac persistency wait time: Indefinite H/W Current
Switch# Role Mac Address Priority Version State
*1 Active 3c13.cc5f.ec00 15 V01 Ready
2 Standby 802d.bfed.8400 14 V01 Ready
show switch stack-mode
Switch# Role Mac Address Version Mode Configured State
*1 Active 3c13.cc5f.ec00 V01 N+1 None Ready
2 Standby 802d.bfed.8400 V01 N+1 None Ready
Since this is my first time stacking Catalyst 9200L switch, is the Active/Standby Role correct? Is the Mode N+1 correct?
ANY questions or help about this issue would be really appreciated, i will gladly help!
Regards
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