I have a new Catalyst 4500X-16 SFP+ Switch with ten GLC-SX-MMD SFP modules connected to ten Cisco SG300-10 switches with MGBSX1 SFP modules. The 4500X is all default config except all I did was setup SSH so I can manage remotely. I have GB connectivity between small SG300-10 switches and 4500X switch without any problems at all, until the SG300 reboots. If power goes out or SG300 is restarted for any reason, it does not communicate with the 4500X switch any longer. If I restart the 4500X, then connectivity is restored. I don't see any port security setup or no ports are down...everything appears up, but I can't communicate until I restart the 4500X switch.
I'm not sure where to begin troubleshooting this one. I am putting battery units on each SG300-10 switch, but that is just a temporary fix and I'd like to get to the core of the problem.
4500X is running IOS-XE Version 3.05.00.E
Thanks in advance for any help you can provide.
Below is info on the 4500 switch...
Joist4500>show int status
Port Name Status Vlan Duplex Speed Type
Te1/1 connected 1 full a-1000 1000BaseSX
Te1/2 connected 1 full a-1000 1000BaseSX
Te1/3 connected 1 full a-1000 1000BaseSX
Te1/4 connected 1 full a-1000 1000BaseSX
Te1/5 notconnect 1 full auto 1000BaseSX
Te1/6 notconnect 1 full auto No XCVR
Te1/7 connected 1 full a-1000 1000BaseSX
Te1/8 notconnect 1 full auto No XCVR
Te1/9 notconnect 1 full auto No XCVR
Te1/10 connected 1 full a-1000 1000BaseSX
Te1/11 connected 1 full a-1000 1000BaseSX
Te1/12 connected 1 full a-1000 1000BaseSX
Te1/13 notconnect 1 full auto No XCVR
Te1/14 connected 1 full a-1000 1000BaseSX
Te1/15 notconnect 1 full auto 1000BaseSX
Te1/16 notconnect 1 full auto No XCVR
Joist4500>
Joist4500>show span
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 0025.641d.cfe4
Cost 10
Port 1 (TenGigabitEthernet1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 58f3.9c8d.b988
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/1 Root FWD 4 128.1 P2p
Te1/2 Desg FWD 4 128.2 P2p
Te1/3 Desg FWD 4 128.3 P2p
Te1/4 Desg FWD 4 128.4 P2p
Te1/7 Desg FWD 4 128.7 P2p
Te1/10 Desg FWD 4 128.10 P2p
Te1/11 Desg FWD 4 128.11 P2p
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/12 Desg FWD 4 128.12 P2p
Te1/14 Desg FWD 4 128.14 P2p
Joist4500>
Joist4500#show spanning detail
VLAN0001 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, sysid 1, address 58f3.9c8d.b988
Configured hello time 2, max age 20, forward delay 15
Current root has priority 32768, address 0025.641d.cfe4
Root port is 1 (TenGigabitEthernet1/1), cost of root path is 10
Topology change flag not set, detected flag not set
Number of topology changes 10 last change occurred 4d05h ago
from TenGigabitEthernet1/4
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 0, topology change 0, notification 0, aging 300
Port 1 (TenGigabitEthernet1/1) of VLAN0001 is root forwarding
Port path cost 4, Port priority 128, Port Identifier 128.1.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 20bb.c0f2.6800
Designated port id is 128.50, designated path cost 6
Timers: message age 3, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 10, received 185137
Port 2 (TenGigabitEthernet1/2) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.2.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.2, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185136, received 1
Port 3 (TenGigabitEthernet1/3) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.3.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.3, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185134, received 1
Port 4 (TenGigabitEthernet1/4) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.4.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.4, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185125, received 0
Port 7 (TenGigabitEthernet1/7) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.7.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.7, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185133, received 0
Port 10 (TenGigabitEthernet1/10) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.10.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.10, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185130, received 0
Port 11 (TenGigabitEthernet1/11) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.11.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.11, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185129, received 0
Port 12 (TenGigabitEthernet1/12) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.12.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.12, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185129, received 0
Port 14 (TenGigabitEthernet1/14) of VLAN0001 is designated forwarding
Port path cost 4, Port priority 128, Port Identifier 128.14.
Designated root has priority 32768, address 0025.641d.cfe4
Designated bridge has priority 32769, address 58f3.9c8d.b988
Designated port id is 128.14, designated path cost 10
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
Link type is point-to-point by default
BPDU: sent 185127, received 0
login as: dquintanilla
Sent username "dquintanilla"
dquintanilla@172.29.30.237's password:
Joist4500>show int status
Port Name Status Vlan Duplex Speed Type
Te1/1 connected 1 full a-1000 1000BaseSX
Te1/2 connected 1 full a-1000 1000BaseSX
Te1/3 connected 1 full a-1000 1000BaseSX
Te1/4 connected 1 full a-1000 1000BaseSX
Te1/5 notconnect 1 full auto 1000BaseSX
Te1/6 notconnect 1 full auto No XCVR
Te1/7 connected 1 full a-1000 1000BaseSX
Te1/8 notconnect 1 full auto No XCVR
Te1/9 notconnect 1 full auto No XCVR
Te1/10 connected 1 full a-1000 1000BaseSX
Te1/11 connected 1 full a-1000 1000BaseSX
Te1/12 connected 1 full a-1000 1000BaseSX
Te1/13 notconnect 1 full auto No XCVR
Te1/14 connected 1 full a-1000 1000BaseSX
Te1/15 notconnect 1 full auto 1000BaseSX
Te1/16 notconnect 1 full auto No XCVR
Joist4500>show span
VLAN0001
Spanning tree enabled protocol ieee
Root ID Priority 32768
Address 0025.641d.cfe4
Cost 10
Port 1 (TenGigabitEthernet1/1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 32769 (priority 32768 sys-id-ext 1)
Address 58f3.9c8d.b988
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 15 sec
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/1 Root FWD 4 128.1 P2p
Te1/2 Desg FWD 4 128.2 P2p
Te1/3 Desg FWD 4 128.3 P2p
Te1/4 Desg FWD 4 128.4 P2p
Te1/7 Desg FWD 4 128.7 P2p
Te1/10 Desg FWD 4 128.10 P2p
Te1/11 Desg FWD 4 128.11 P2p
Interface Role Sts Cost Prio.Nbr Type
------------------- ---- --- --------- -------- --------------------------------
Te1/12 Desg FWD 4 128.12 P2p
Te1/14 Desg FWD 4 128.14 P2p
Below is info on one of the SG300-10 switches.
I have no reason to stay on this version of OS and will work on upgrading version soon to see if this helps. Thanks again.
