Latest LQ Deal: Complete CCNA, CCNP & Red Hat Certification Training Bundle
Go Back > Forums > Linux Forums > Linux - Networking
User Name
Linux - Networking This forum is for any issue related to networks or networking.
Routing, network cards, OSI, etc. Anything is fair game.


  Search this Thread
Old 08-20-2010, 02:54 AM   #1
LQ Newbie
Registered: Mar 2009
Posts: 6

Rep: Reputation: 0
Question Bonding a Bond running 802.3ad Dynamic link aggregation


Can anyone tell me if it is possible to bond an existing bond.

I have 4 nics assigned to 2 bonds for link aggregation. ie

e1000g0 - bond1 - mode =4
e1000g1 - bond1 - mode =4

e1000g2 - bond2 - mode =4
e1000g3 - bond2 - mode =4

I would have presumed that you have 2 x agregates giving 2 x 2gig links and the resilience is that if one nic fails in either bond you carry on with that bond running a 1 gig link until fixed.

But, our architect wants to have an active/passive (mode 1) accross bond2 and bond3.

I have setup tons of mode 1 bonds and mode 4 bonds but never tried bonding 2 x mode 4 bonds!

any thoughts?

Old 08-23-2010, 04:13 AM   #2
LQ Newbie
Registered: Mar 2009
Posts: 6

Original Poster
Rep: Reputation: 0
sorry, above should read

But, our architect wants to have an active/passive (mode 1) accross bond1 and bond2. So bond3 (mode 1) will consist of bond1 and bond2.

Old 08-27-2010, 02:58 AM   #3
LQ Newbie
Registered: Mar 2009
Posts: 6

Original Poster
Rep: Reputation: 0

Can anyone advise if this is the forum or if know of better place to post this question?

Old 04-21-2011, 04:54 AM   #4
LQ Newbie
Registered: Mar 2009
Posts: 6

Original Poster
Rep: Reputation: 0
Answer to this is you cant bond a bond. The linux kernel will not support.

Having 2 LACP bonds with 2 IPs didnt work with our netbackup server version either.....couldnt handle multiple IPs.....i believe this may be addressed in newer version (7>)

So for now stuck to normal mode 1 bond.

But have seen article that in RHEL 6 and bonding 3.5.0 or later can have bond with multiple nics accross multiple switches with different aggregate IDs. RHEL 6 not in roadmap for a while so cant play as dont have a system that could test the trunking.
Old 10-20-2011, 04:24 PM   #5
LQ Newbie
Registered: Oct 2011
Posts: 1

Rep: Reputation: Disabled
Have the limitations changed?

I have a similar situation, I would like to bond bonds...

eth0 - bond0 - mode=4
eth2 - bond0 - mode=4

eth1 - bond1 - mode=4
eth3 - bond1 - mode=4

Bond of Bonds 2 * 2Gb connectivity
bond0 - bond2 - mode=6
bond1 - bond2 - mode=6

Thereby giving load balancing and protection from a switch failure...

I'm running RHEL 6 which appears to have 3.6.0 of the bonding driver. Or is their another method I should be using to achieve what I want?


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Bridging a bond (802.3ad) only works when stp is enabled? OggVorbis2 Linux - Networking 4 01-12-2016 09:48 AM
bonding 802.3ad problem td3201 Linux - Networking 3 12-18-2009 12:04 PM
bonding 802.3ad -- sanity check td3201 Linux - Networking 1 04-07-2009 11:50 AM
802.3ad Link Aggregation Issues. hweng Linux - Wireless Networking 0 02-09-2007 09:36 AM
Is there a way to monitor individual throughput of an 802.3ad link aggregation setup? BrianK Linux - Wireless Networking 1 01-18-2007 10:34 PM > Forums > Linux Forums > Linux - Networking

All times are GMT -5. The time now is 02:14 AM.

Main Menu
Write for LQ is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration