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How to use extended-range vlans in the NM-16ESW
How to use extended-range vlans in the NM-16ESW
In case that you don't already know, in the latest IOS (> 12.4(15)T) you can use extended-range vlans (1006-4094) in your dynamips router/switch (using the NM-16ESW module). Also the vlan database mode is not recommended anymore and you can use the latest config-vlan submode. That way you can replicate more closely the various vendor labs.
I'm using a 3725 as switch, so this is its config in the net file:
Code:
[[3725]] image = /usr/share/cisco-ios/c3725-adventerprisek9-mz.124-15.T5.extracted.bin ram = 148 disk0 = 8 disk1 = 0 # The idlepc value hasn't been tested extensively, so it might not work in your case. idlepc = 0x6148b594
Code:
SW1#conf t Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#vlan ? accounting VLAN accounting configuration ifdescr VLAN subinterface ifDescr SW1(config)#vlan 2567 SW1(config-vlan)#name VLAN-2567 SW1(config-vlan)#^Z SW1#
Code:
SW1#conf t Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#int f1/1 SW1(config-if)#switchport access vlan ? <1-4094> VLAN ID of the VLAN when this port is in access mode SW1(config-if)#switchport access vlan 2567 SW1(config-if)#^Z SW1
Code:
SW1#sh vlan-sw br
VLAN Name Status Ports
---- -------------------------------- --------- -------------------------------
1 default active Fa1/0, Fa1/4, Fa1/5, Fa1/6
Fa1/7, Fa1/8, Fa1/9, Fa1/10
Fa1/11, Fa1/12, Fa1/13, Fa1/14
Fa1/15
13 VLAN0013 active
1002 fddi-default act/unsup
1003 token-ring-default act/unsup
1004 fddinet-default act/unsup
1005 trnet-default act/unsup
2567 VLAN-2567 active Fa1/1
Code:
SW1#sh spanning-tree vlan 2567
VLAN2567 is executing the ieee compatible Spanning Tree protocol
Bridge Identifier has priority 32768, address c200.04f8.0001
Configured hello time 2, max age 20, forward delay 15
We are the root of the spanning tree
Topology change flag set, detected flag set
Number of topology changes 2 last change occurred 00:00:19 ago
from FastEthernet1/2
Times: hold 1, topology change 35, notification 2
hello 2, max age 20, forward delay 15
Timers: hello 1, topology change 16, notification 0, aging 300
Port 42 (FastEthernet1/1) of VLAN2567 is forwarding
Port path cost 19, Port priority 128, Port Identifier 128.42.
Designated root has priority 32768, address c200.04f8.0001
Designated bridge has priority 32768, address c200.04f8.0001
Designated port id is 128.42, designated path cost 0
Timers: message age 0, forward delay 0, hold 0
Number of transitions to forwarding state: 1
BPDU: sent 193, received 0
Code:
SW1#sh run | b vtp vtp mode transparent ! vlan 2567 name VLAN-2567 !
Code:
SW1#conf t Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#int f1/1 SW1(config-if)#switchport access vlan 2567 % Warning: port will be inactive in non-ethernet VLAN SW1(config-if)#^Z SW1#sh int f1/1 switchport Name: Fa1/1 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Disabled Access Mode VLAN: 2567 ((Inactive)) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Trunking VLANs Active: 2567 Protected: false Priority for untagged frames: 0 Override vlan tag priority: FALSE Voice VLAN: none Appliance trust: none SW1#conf t Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#int f1/1 SW1(config-if)#shut SW1(config-if)#no switchport access vlan 2567 SW1(config-if)#switchport access vlan 2567 SW1(config-if)#no shut SW1(config-if)#^Z SW1#sh int f1/1 switchport Name: Fa1/1 Switchport: Enabled Administrative Mode: static access Operational Mode: static access Administrative Trunking Encapsulation: dot1q Operational Trunking Encapsulation: native Negotiation of Trunking: Disabled Access Mode VLAN: 2567 (VLAN-2567) Trunking Native Mode VLAN: 1 (default) Trunking VLANs Enabled: ALL Trunking VLANs Active: 2567 Protected: false Priority for untagged frames: 0 Override vlan tag priority: FALSE Voice VLAN: none Appliance trust: none
Code:
SW1#sh vtp status VTP Version : 2 Configuration Revision : 0 Maximum VLANs supported locally : 36 Number of existing VLANs : 6 VTP Operating Mode : Server VTP Domain Name : VTP Pruning Mode : Disabled VTP V2 Mode : Disabled VTP Traps Generation : Disabled MD5 digest : 0xF5 0xBA 0x45 0x80 0xA7 0x6B 0x76 0x88 Configuration last modified by 0.0.0.0 at 3-1-02 00:07:07 Local updater ID is 0.0.0.0 (no valid interface found) SW1#conf t Enter configuration commands, one per line. End with CNTL/Z. SW1(config)#vlan 2567 SW1(config-vlan)#name VLAN-2567 SW1(config-vlan)#exit % Failed to create VLANs 2567 Extended VLAN(s) not allowed in current VTP mode. %Failed to commit extended VLAN(s) changes. SW1(config)# *Mar 1 00:02:23.247: %SW_VLAN-4-VLAN_CREATE_FAIL: Failed to create VLANs 2567: extended VLAN(s) not allowed in current VTP mode
Code:
SW1#conf t SW1(config)#vtp mode server Setting device to VTP SERVER mode % not enough space on flash to store vlan database. trying squeeze... squeeze in progress... % error squeezing flash - (Unknown error 0) SW1#squeeze flash: Squeeze operation may take a while. Continue? [confirm] squeeze in progress... %Error squeezing flash (Unknown error 0) SW1#erase flash: Erasing the flash filesystem will remove all files! Continue? [confirm] Erasing device... ...NOT erased Erase of flash: complete SW1#squeeze flash: Squeeze operation may take a while. Continue? [confirm] Squeeze of flash complete