DLS1 and DLS2 I use as VLAN Database and STP Root for several vlan ( Vlan 10 and 60) DLS1 Root for vlan 60 and DLS2 Root for VLAN 10
[DLS1]
DLS1(config)#span vlan 10 root pri DLS1(config)#span vlan 60 root Sec
*now we need show the result
DLS1#show spanning-tree vlan 10 bri
VLAN10
Spanning tree enabled protocol ieee
Root ID Priority 8192
Address cc01.35a1.0001
Cost 12
Port 321 (Port-channel1)
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 16384
Address cc00.35a1.0001
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Designated
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
-------------------- ------- ---- ----- --- ----- -------------------- -------
Port-channel1 129.65 128 12 FWD 0 8192 cc01.35a1.0001 129.65
Port-channel2 129.66 128 12 FWD 12 16384 cc00.35a1.0001 129.66
Port-channel3 129.67 128 12 FWD 12 16384 cc00.35a1.0001 129.67
DLS1#show spanning-tree vlan 60 bri
VLAN60
Spanning tree enabled protocol ieee
Root ID Priority 8192
Address cc00.35a1.0006
This bridge is the root
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Bridge ID Priority 8192
Address cc00.35a1.0006
Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec
Aging Time 300
Interface Designated
Name Port ID Prio Cost Sts Cost Bridge ID Port ID
-------------------- ------- ---- ----- --- ----- -------------------- -------
Port-channel1 129.65 128 12 FWD 0 8192 cc00.35a1.0006 129.65
Port-channel2 129.66 128 12 FWD 0 8192 cc00.35a1.0006 129.66
Port-channel3 129.67 128 12 FWD 0 8192 cc00.35a1.0006 129.67
[DLS2]
DLS2(config)#span vlan 60 root pri DLS2(config)#span vlan 10 root Sec
* time to show the result
DLS2#show span vlan 10 brie VLAN10 Spanning tree enabled protocol ieee Root ID Priority 8192 Address cc01.35a1.0001 This bridge is the root Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 8192 Address cc01.35a1.0001 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Designated Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- Port-channel1 129.65 128 12 FWD 0 8192 cc01.35a1.0001 129.65 Port-channel2 129.66 128 12 FWD 0 8192 cc01.35a1.0001 129.66 Port-channel3 129.67 128 12 FWD 0 8192 cc01.35a1.0001 129.67 DLS2#show span vlan 60 brie VLAN60 Spanning tree enabled protocol ieee Root ID Priority 8192 Address cc00.35a1.0006 Cost 12 Port 321 (Port-channel1) Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Bridge ID Priority 16384 Address cc01.35a1.0006 Hello Time 2 sec Max Age 20 sec Forward Delay 15 sec Aging Time 300 Interface Designated Name Port ID Prio Cost Sts Cost Bridge ID Port ID -------------------- ------- ---- ----- --- ----- -------------------- ------- Port-channel1 129.65 128 12 FWD 0 8192 cc00.35a1.0006 129.65 Port-channel2 129.66 128 12 FWD 12 16384 cc01.35a1.0006 129.66 Port-channel3 129.67 128 12 FWD 12 16384 cc01.35a1.0006 129.67
I can see now DLS1 is root for VLAN 60 and Sec for Vlan 10
DLS2 is Root for vlan 10 and Sec for vlan 10, I Have create etherchannel link. so its support doulble speed from standart ethernet speed.
DLS1#show etherchannel sum Flags: D - down P - in port-channel I - stand-alone s - suspended R - Layer3 S - Layer2 U - in use Group Port-channel Ports -----+------------+----------------------------------------------------------- 1 Po1(SU) Fa0/11(P) Fa0/12(P) 2 Po2(SU) Fa0/7(P) Fa0/8(P) 3 Po3(SU) Fa0/9(P) Fa0/10(P) DLS1#show int po1 Port-channel1 is up, line protocol is up Hardware is EtherChannel, address is cc00.35a1.f00b (bia cc00.35a1.f00b) MTU 1500 bytes, BW 200000 Kbit, DLY 1000 usec, reliability 255/255, txload 1/255, rxload 1/255 Encapsulation ARPA, loopback not set Keepalive set (10 sec) Full-duplex, 100Mb/s Members in this channel: Fa0/11 Fa0/12 -------------- cut--------------------------------------
in show command i can see double link speed already created from sum of fa0/11 dan fa0/12