200 125 vs 200 301

200 125 vs 200 301.1002 fddi-default act/unsup1003 token-ring-default act/unsup1004 fddinet-default act/unsup1005 trnet-default act/unsupThe last line of the example is the output of the Show Vian command that lists all the VLANs and all the access ports assigned to each VLAN match (note that these commands match the previous Figure 1-1).Spend a little more time thinking back to the STP task. the STP does not work for any of the commands in Example 1-2. For example, the show interfaces status command does not change the division of existing VLANs, port aggregation (trunking) status, or change the status of an interface from "connected" to anything else. STP needs to first use the show spanning-tree command and then apply this generated information to all the general information about the interfaces (whether they are access links or trunk links) and the VLANs they support. Verifying Trunking (Trunk)A final review of the basics of the LAN switching command output discussed earlier happens to show some direct evidence of STP as well:show interfaces trunk command.Cisco switch interfaces work in VLAN port aggregation mode if configured correctly on both ends of the trunk. The trunk supports all VLANs known to the local switch. however. due to different switch features. the trunk can also choose not to forward frames for certain VLANs. one of these features is STP.The show interfacestrunk command identifies two important ideas. First, it lists only currently operable trunks and does not list port aggregation (Trunking) that may need to be negotiated in the future. The command also lists which VLANs the switch is currently forwarding frames for on a per-port basis in the last row of output. Example 1-3 is an example.Example 1-3 show interfaces trunk, focusing on the last listed VLAN