03-23-2011 09:58 AM - edited 03-04-2019 11:51 AM
dear all ... how can create bounding interface in cisco switch ???
03-27-2011 12:14 AM
Hi Tariq,
You are asking probably about an issue related to another thread of you:
https://supportforums.cisco.com/message/3324158#3324158
Check for the answers there. Also, this topic is a LAN switching topic and would be better placed in the LAN, Routing and Switching section.
Best regards,
Peter
03-27-2011 12:31 AM
Dear Tariq,
i agree with peter, but in any case kindly see the bonding interface is typically an IOS feature in switching which can be used for many distinct ways for benefits and acquiring the sets of goals. i am sending you some of the details and guide may be this helps you to achive your goals, however if you need any more assistance please dont hesitate to contact me.
When working with bonded + trunked interfaces between servers and switches, remember:
Linux systems do not appear to have the ability to alter their native VLAN. Futhermore, they actively discourage the use of VLAN 1 for host attachment as the untagged/native VLAN is where the control packets for LACP and other such protocols travel. Cisco IOS can change the native/untagged vlan with the
instruction. Do not use this! Keep the native VLAN as VLAN1.
On cisco devices, watch for the use of the global config option
, which will tag the LACP control frames, making them "invisible" to the server on the other side of the link that's expecting these frames to be untagged even on a trunk port.
Note that if this instruction is present in a switch, it cannot simply just be removed. Other trunked devices may be expecting this behaviour, and hence require either server or switchport reconfiguration to function as expected.
Cisco CatOS based devices require alternate configuration.
We require:
In this example, we are trunking VLANs 1,50-89 on the bonded interface.
interface Port-channel1
description LACP Channel Bundle for virt-host-1
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,50-89 <<< controls which VLANs this trunk can access, "all" for all
switchport trunk native vlan 1
switchport mode trunk
no ip address
no shutdown
speed 1000
duplex full
spanning-tree portfast trunk
exit
Add physical interfaces to the bonded interface (max 8), note that the "switchport" instructions must match.
interface GigabitEthernet1/1
description virt-host-1 port 1 (eth0)
switchport
switchport trunk encapsulation dot1q
<<< sets trunk type, dot1q vs Cisco ISL
switchport trunk allowed vlan 1,50-89 <<< select vlans to expose on trunk
switchport trunk native vlan 1
<<< forces the native VLAN (see warning)
switchport mode trunk <<< puts the interface into trunk (802.1q) mode
no ip address
no shutdown
speed 1000
duplex full
spanning-tree portfast trunk
<<< only used if this does not create an L2 loop
channel-protocol lacp <<< selects lacp as the bonding protocol (802.3ad)
channel-group 1 mode active
<<< channel-group # must match port-channel #
!
interface GigabitEthernet1/2
description virt-host-1 port 2 (eth1)
switchport
switchport trunk encapsulation dot1q
switchport trunk allowed vlan 1,50-89
switchport trunk native vlan 1
switchport mode trunk
no ip address
no shutdown
speed 1000
duplex full
spanning-tree portfast trunk
channel-protocol lacp
channel-group 1 mode active
Regards
USMAN DAR
Arab Vision IT & Telesys
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