Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

Can I connect a 2900XL switch to Cisco 7960 pc port?

It doesn't seem to be working. I tried access vlan as well as trunking config on the 2900XL switch port to a 7960 phone PC port.

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

Try disabling spanning tree.

6 REPLIES
Hall of Fame Super Gold

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

Should work. But why don't you connect it upstream of the phone then.

New Member

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

It's a temporary switch and I don't want to mess around the phone upstream connection. Also I can power on/off the 2900 switch without affecting the phone. What should I configure the switch port to 7960 pc port? I've tried both access and trunk mode.

Hall of Fame Super Gold

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

Access. Check, it may get blocked by bpduguard or other security feature.

New Member

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

Access doesn't work. Switch is getting the bpdu packet from the phone pc port.

!

interface FastEthernet0/1

switchport access vlan 231

end

00:02:03: %SPANTREE-2-RECV_1Q_NON_TRUNK: Received 802.1Q BPDU on non trunk FastEthernet0/1 on vlan 231.

00:02:03: %SPANTREE-2-BLOCK_PORT_TYPE: Blocking FastEthernet0/1 on vlan 231. Inconsistent port type.

Changed to trunk port still doesn't help. Switch thinks it's the root for both VLANs.

!

interface FastEthernet0/1

switchport trunk encapsulation dot1q

switchport mode trunk

end

#sh spanning-tree brief

VLAN1

Spanning tree enabled protocol IEEE

ROOT ID Priority 32768

Address 0001.968f.94c0

This bridge is the root

Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32768

Address 0001.968f.94c0

Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Port Designated

Name Port ID Prio Cost Sts Cost Bridge ID Port ID

------- ------- ---- ---- --- ---- -------------- -------

Fa0/1 128.13 128 19 FWD 0 0001.968f.94c0 128.13

Fa0/4 128.16 128 19 BLK 0 0001.968f.94c0 128.16

Fa0/5 128.17 128 19 BLK 0 0001.968f.94c0 128.17

Fa0/6 128.18 128 19 BLK 0 0001.968f.94c0 128.18

Fa0/7 128.19 128 19 BLK 0 0001.968f.94c0 128.19

Fa0/8 128.20 128 19 BLK 0 0001.968f.94c0 128.20

Fa0/10 128.23 128 19 BLK 0 0001.968f.94c0 128.23

Fa0/11 128.24 128 19 BLK 0 0001.968f.94c0 128.24

Fa0/12 128.25 128 19 BLK 0 0001.968f.94c0 128.25

Fa0/13 128.26 128 19 BLK 0 0001.968f.94c0 128.26

Port Designated

Name Port ID Prio Cost Sts Cost Bridge ID Port ID

------- ------- ---- ---- --- ---- -------------- -------

Fa0/14 128.27 128 19 BLK 0 0001.968f.94c0 128.27

Fa0/15 128.28 128 19 BLK 0 0001.968f.94c0 128.28

Fa0/16 128.29 128 19 BLK 0 0001.968f.94c0 128.29

Fa0/17 128.31 128 19 BLK 0 0001.968f.94c0 128.31

Fa0/18 128.32 128 19 BLK 0 0001.968f.94c0 128.32

Fa0/19 128.33 128 19 BLK 0 0001.968f.94c0 128.33

Fa0/20 128.34 128 19 BLK 0 0001.968f.94c0 128.34

Fa0/21 128.35 128 19 BLK 0 0001.968f.94c0 128.35

Fa0/22 128.36 128 19 BLK 0 0001.968f.94c0 128.36

Fa0/23 128.37 128 19 BLK 0 0001.968f.94c0 128.37

Fa0/24 128.38 128 19 BLK 0 0001.968f.94c0 128.38

VLAN231

Spanning tree enabled protocol IEEE

ROOT ID Priority 32768

Address 0001.968f.94c1

This bridge is the root

Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Bridge ID Priority 32768

Address 0001.968f.94c1

Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec

Port Designated

Name Port ID Prio Cost Sts Cost Bridge ID Port ID

------- ------- ---- ---- --- ---- -------------- -------

Fa0/1 128.13 128 19 FWD 0 0001.968f.94c1 128.13

Fa0/2 128.14 128 19 FWD 0 0001.968f.94c1 128.14

Fa0/3 128.15 128 19 BLK 0 0001.968f.94c1 128.15

Fa0/9 128.22 128 19 FWD 0 0001.968f.94c1 128.22

Hall of Fame Super Gold

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

Try disabling spanning tree.

New Member

Re: Can I connect a 2900XL switch to Cisco 7960 pc port?

That takes care of the issue. Thanks for the tip!

242
Views
0
Helpful
6
Replies