Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17

x
?
Solved

Best Practice: Connecting bonded Linux interfaces to a pair of Cisco 2960G

Posted on 2009-04-07
4
Medium Priority
?
1,433 Views
Last Modified: 2012-05-06
Hiya,

I'm a linux SA (not much network knowledge). I've been rolling out Openfiler SANs (think linux), with a pair of bonded GigE interfaces on our LAN. They are on a seperate VLAN.

We have a pair of Catalyst 2960G that we wil be using to put these on the network. What are my options?

1) Is there a way to spread the two bonded SAN interfaces across the switches, and if so, what are the steps? I'm willing to interconnect the two switches however is necessary, and am willing to use any bonding mode on the linux side save for maybe mode 1 (active-backup), although I would consider that if it were the only option.

2) If not, and I have to put both interfaces on the same switch, what the best way to do that? Which bonding mode would work best, and what are the setup steps?

Right now each pair is bonded round-robin, and is attached to a single switch. Things are running, but I didn't do anything special bonding-wise on the switch and I suspect I'm giving the switch a headache.

Thanks for any help.    
0
Comment
Question by:doglikegroove
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 3
4 Comments
 
LVL 27

Expert Comment

by:Nopius
ID: 24133969
> What are my options?

> 2) If not, and I have to put both interfaces on the same switch, what the best way to do that? Which bonding mode would work best, and what are the setup steps?

Here is only my guess, doesn't tested... You may use Linux bonding mode=4 (802.3ad), the same aggregation mode can be configured on Cisco:
http://www.linuxhorizon.ro/bonding.html
http://www.cisco.com/en/US/tech/tk389/tk213/technologies_configuration_example09186a0080094470.shtml

This link may or may not be helpful... http://www.linuxjournal.com/article/7268
0
 
LVL 27

Accepted Solution

by:
Nopius earned 2000 total points
ID: 24134003
> We have a pair of Catalyst 2960G that we wil be using to put these on the network. What are my options?

AFAIK Catalysts 29xx can't be stacked, so you might try other bonding modes, not 802.3ad (which is good when we are connected to the same switch).
Also when you have 2 switches and spanning tree protocol enabled, you  only one path to your Openfiled appliance will be used, so you get may your 'active-standby' alternative.

Again, you should test the configuration.
0
 
LVL 27

Expert Comment

by:Nopius
ID: 24134049
Here they say that you may use cisco only with stacked modules (say 6xxx can be used)
http://techrepublic.com.com/5208-1035-0.html?forumID=101&threadID=270937&messageID=2564103
and some more links to this technology: http://search.techrepublic.com.com/search/cisco+etherchannel+technology.html
0
 

Author Comment

by:doglikegroove
ID: 24427261
I wasn't able to get this working across two switches.

As for the bonding type, 802.3ad works really well with Cisco and Linux.
0

Featured Post

ATEN's HDBaseT Presentation at InfoComm 2017

Hear ATEN Product Manager YT Liang review HDBaseT technology, highlighting ATEN’s latest solutions as they relate to real-world applications during her presentation at the HDBaseT booth at InfoComm 2017.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

We've been using the Cisco/Linksys RV042 for years as: - an internet Gateway - a site-to-site VPN device - a leased line site-to-site subnet-to-subnet interface (And, here I'm assuming that any RV0xx behaves the same way as an RV042.  So that's …
How to set-up an On Demand, IPSec, Site to SIte, VPN from a Draytek Vigor Router to a Cyberoam UTM Appliance. A concise guide to the settings required on both devices
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…

660 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question