Cisco WS-C2948G-GE-TX Configuration Manual page 253

Chapter 11 Configuring VLAN Trunks on Fast Ethernet and Gigabit Ethernet Ports
Figure 11-6 802.1Q Trunking: Final Network Configuration
Trunk Type: 802.1Q
Trunk Mode: nonegotiate
Verify the 802.1Q configuration on Switch 1 by entering the show trunk and show spantree commands.
Step 4
Switch 1> (enable) show trunk 1/1
Port
--------
1/1
Port
--------
1/1
Port
--------
1/1
Port
--------
1/1
Switch 1> (enable) show spantree 1
VLAN 1
Spanning tree enabled
Spanning tree type
Designated Root
Designated Root Priority
Designated Root Cost
Designated Root Port
Root Max Age
Bridge ID MAC ADDR
Bridge ID Priority
Bridge Max Age 20 sec
Port
--------- ----
1/1
1/2
<...output truncated...>
Switch 1> (enable)
The output shows that port 1/1 is an 802.1Q trunk port, that its status is "trunking," and that the port-state
is "forwarding."
Verify the configuration on Switch 2 by entering the show trunk and show spantree commands.
Step 5
Switch 2> (enable) show trunk 4/1
Port
--------
4/1
Catalyst 4500 Series, Catalyst 2948G, Catalyst 2948G-GE-TX, and Catalyst 2980G Switches Software Configuration Guide—Release 8.2GLX
78-15908-01
Port 1/1
Trunk Type: 802.1Q
Trunk Mode: nonegotiate
Switch 1 802.1Q Trunk
Mode Encapsulation
----------- -------------
nonegotiate dot1q
Vlans allowed on trunk
---------------------------------------------------------------------
1-1005, 1025-4094
Vlans allowed and active in management domain
---------------------------------------------------------------------
1-3,1003,1005
Vlans in spanning tree forwarding state and not pruned
---------------------------------------------------------------------
1005
ieee
00-60-09-79-c3-00
32768
0
1/1
20 sec Hello Time 2
00-10-29-b5-30-00
49152
Hello Time 2
Vlan Port-State
-------------
1 forwarding
1 not-connected
Mode Encapsulation
----------- -------------
nonegotiate dot1q
Port 4/1
Switch 2
Status Native vlan
------------ -----------
trunking 1
sec Forward Delay 15 sec
sec Forward Delay 15 sec
Cost Priority Fast-Start
----- -------- ----------
4 32 disabled
4 32 disabled
Status Native vlan
------------ -----------
trunking 1
Example VLAN Trunk Configurations
Group-method
------------
11-21