VLAN Name Status Ports 3 VLAN0003 active Fa01 VLAN Type SAID MTU Parent RingNo

Vlan name status ports 3 vlan0003 active fa01 vlan

This preview shows page 18 - 28 out of 77 pages.

VLAN Name Status Ports ---- -------------------------------- --------- ------------------------------- 3 VLAN0003 active Fa0/1 VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 3 enet 100003 1500 - - - - - 0 0 Switch# show vlan name VLAN0003 VLAN Name Status Ports ---- -------------------------------- --------- --------------------- 3 VLAN0003 active Fa0/1 VLAN Type SAID MTU Parent RingNo BridgeNo Stp BrdgMode Trans1 Trans2 ---- ----- ---------- ----- ------ ------ -------- ---- -------- ------ ------ 3 enet 100003 1500 - - - - - 0 0
Image of page 18
19 Verification: Interface Configuration The show running-config command has an interface keyword option to allow for interface-specific output. Switch# show running-config interface FastEthernet 5/6 Building configuration... ! Current configuration :33 bytes interface FastEthernet 5/6 switchport access vlan 200 switchport mode access switchport host end
Image of page 19
20 Verification: Switch Port Configuration One of the most useful commands for showing VLAN configuration information specific to a switch port is the show interfaces interface_id switchport command. Switch# show interfaces f0/18 switchport Name: Fa0/18 Switchport: Enabled Administrative Mode: static access Operational Mode: down Administrative Trunking Encapsulation: dot1q Negotiation of Trunking: Off Access Mode VLAN: 20 (VLAN0020) Trunking Native Mode VLAN: 1 (default) Administrative Native VLAN tagging: enabled Voice VLAN: 150 (VLAN0150) <output omitted> Operational private-vlan: none Trunking VLANs Enabled: ALL Pruning VLANs Enabled: 2-1001 Capture Mode Disabled Capture VLANs Allowed: ALL
Image of page 20
21 Verification: MAC Address Information You can view MAC address information specific to an interface and an associated VLAN. Switch# show mac-address-table interface GigabitEthernet 0/1 vlan 1 Mac Address Table ------------------------------------------ Vlan Mac Address Type Ports ---- ----------- ---- ----- 1 0008.2199.2bc1 DYNAMIC Gi0/1 Total Mac Addresses for this criterion: 1
Image of page 21
22 Implementing Trunking in a Campus Network
Image of page 22
23
Image of page 23
24 VLAN Trunking with Inter-Switch Link (ISL) ISL is Cisco-proprietary trunking protocol. ISL is nearly obsolete. ISL encapsulates Ethernet frames, adding 30 bytes of overhead. ISL is supported on non-access-layer Cisco switches.
Image of page 24
25 VLAN Trunking with IEEE 802.1Q 802.1Q is a widely supported industry-standard protocol. IEEE 802.1Q has smaller frame overhead than ISL. 802.1Q overhead is 4 bytes. 802.1Q has the 802.1p field for QoS support.
Image of page 25
26
Image of page 26
27
Image of page 27
Image of page 28

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture