Are Port groups and LACP LAG groups the same?

SteveJ-007
SteveJ-007 used Ask the Experts™
on
Hi Everyone,
I have a Zywall USG 1000 UTM gateway appliance and an VMware ESX Server and after reading the documentation I found that both support the creation of port goups. I have read up on LACP and was hoping if someone could clarify the differences between a Port group and an LACP LAG group?

Ideally I would like to create port groups on the ESX Host and on the Gateway appliance and connect them to my switches using LACP so that the connections would have aggregated bandwidth and failover. I was however unsure whether port groups and LACP lag groups were compatible and what the differences were.

Any assistance in helping me clarify these issues would be most appreciated.
Comment
Watch Question

Do more with

Expert Office
EXPERT OFFICE® is a registered trademark of EXPERTS EXCHANGE®
mikecrIT Architect/Technology Delivery Manager

Commented:
LACP is link aggregation control protocol and yes it is used to bond ports together for higher bandwidth and failover. This is currently how I have my ESX servers set up. They do LACP by default so when you set the channel group up on the switch, it should start working immediately. I have sample configs for Cisco switches if your interested.

Author

Commented:
Hi Mikecr,
Thanks for the advice regarding the ESX Server, Although I am using Powerconnect switches I think I would benefit a lot from looking at your sample config, if you could post it then that would be a great help.

Do you think that the process would be similar for setting up redundant connections to my Gateway appliance?
Top Expert 2009
Commented:
LACP is similar to PAgP by Cisco. They are L2 protocol to combine pyhsical links.
Port groups in esx are logical grouping of ports. You can have mutiple port groups on the same vswitch and for each of this port group you can assign different vlan id if needed. You assign NICs to the vswitch but you can manage how the traffic flow at vswitch or port groups level :)
Success in ‘20 With a Profitable Pricing Strategy

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden using our free interactive tool and use it to determine the right price for your IT services. Start calculating Now!

IT Architect/Technology Delivery Manager
Commented:
Here is a sample config. This channel group is between an HP c7000 Blade Center Ethernet virtual connect module and a Catalyst 6509 switch. The virtual connect is set up as passthru so ESX is doing the work.

SAMPLE SWITCH CONFIGURATION

port-channel load-balance src-mac

 

interface Port-channel1

 no ip address

 switchport

 switchport trunk encapsulation dot1q

 switchport trunk native vlan 4094

 switchport mode trunk

 switchport nonegotiate

 spanning-tree portfast trunk

 

 

interface GigabitEthernet3/17

 description HP BLADE CENTER CHANNEL-GROUP 1

 no ip address

 speed 1000

 duplex full

 switchport

 switchport trunk native vlan 4094

 switchport mode trunk

 switchport nonegotiate

 spanning-tree portfast trunk

 spanning-tree bpduguard enable

 channel-group 1 mode active

 

!

interface GigabitEthernet3/18

 description HP BLADE CENTER CHANNEL-GROUP 1

 no ip address

 speed 1000

 duplex full

 switchport

 switchport trunk native vlan 4094

 switchport mode trunk

 switchport nonegotiate

 spanning-tree portfast trunk

 spanning-tree bpduguard enable

 channel-group 1 mode active

Author

Commented:
Great thanks alot for the help
mikecrIT Architect/Technology Delivery Manager

Commented:
No problem, glad I could help.

Do more with

Expert Office
Submit tech questions to Ask the Experts™ at any time to receive solutions, advice, and new ideas from leading industry professionals.

Start 7-Day Free Trial