Can I combine 2 100mbit pipes from a 540 or 630 to something like a Foundry switch to make a 200mbit connection?
Can't get gigabit for a 540, but need a bit more oomph than 100...
According to Jaye Mathisen : :-) :-) :-) :-) Can I combine 2 100mbit pipes from a 540 or 630 to something like a :-) Foundry switch to make a 200mbit connection? :-) :-) Can't get gigabit for a 540, but need a bit more oomph than 100... :-)
Netapp allows you to do this with a virtual interface.
I received the following from a netapp support person just today -
Virtual interfaces are the process of trunking multiple interfaces together into one single IP address. Virtual Interfaces is also referred to as trunking or Etherchannel.
VI is accomplished by using the vif command to assign multiple unconfigured network interfaces into a single "vif".
The "vif create e4a e4b e4c efd" command will create a vif that encompasses all 4 of the network interfaces. This simply creates the vif. Then you must ifconfig the vif# just like you would any other network interface. The new vif# is now your network interface and not e4a e4b e4c and e4d they all make up the one vif.
Your switch must be configured for Trunking/Etherchannle in order to utilize a VIF. Please check out your switch documentation for proper switch configuration
With this configuration your system appears to the outside world to have a single IP address. The switch and filler will then load balance across all network interfaces in your vif# automatically and also provide fault detection in the event of an interface failure. The fault detection will re-direct all traffic to the 3 remaining interfaces, and will recognize when the failed interface comes back on-line and start using it again.
You need an IP address and DNS Address for each vif# that you create but not for the individual network interface ports.
Regards
Steveb
On Fri, 27 Aug 1999, Steve Blackmon wrote:
The "vif create e4a e4b e4c efd" command will create a vif that encompasses all 4 of the network interfaces. This simply creates the vif. Then you must ifconfig the vif# just like you would any other network interface. The new vif# is now your network interface and not e4a e4b e4c and e4d they all make up the one vif.
actually the syntax is "vif create <trunkname> <components>" in the old releases. The new release adds another option between "create" and "trunkname." Now a trunk could be "multi" or "single," where single means that only one interface in the trunk will be used at a time and multi means that the load will be potentially spread over all interfaces in the trunk. The "single" version of trunking provides multipathing, so if one of your switches dies you can go through a different one.
Now for the kicker:
Does anyone know how to successfully configure a trunk (multi) to take over as a partner interface? "ifconfig <trunkname> [optional blah blah blah] partner <partner's ip>" does not work (at least for me ) in 5.3.2.R1. It returns an error about invalid partner. I can provide more detail, just not at the moment.
Tom
Does anyone know how to successfully configure a trunk (multi) to take over as a partner interface? "ifconfig <trunkname> [optional blah blah blah] partner <partner's ip>" does not work (at least for me ) in 5.3.2.R1. It returns an error about invalid partner. I can provide more detail, just not at the moment.
Yes, you need to say:
ifconfig <trunkname> [optional blah blah> blah] partner <partner's *ifname*> ^^^^^^^^
The error message that comes out of 5.3.2R1 is vague. There is an internal bug report to fix this in a follow-on release.
Note that you can use either <partner's ip> or <partner's ifname> for specifying failover mappings of interfaces (other than vifs) in 5.3.2. Vifs require the <partner's ifname>.
Thanks ...
/sas
I have been playing with this stuff and checking out its capacity with the limited hardware I have here in the land of cheese and windmills.
I am playing with a 29xx XL Cisco or something, but initially I hooked up back-to-back to a Sun E250. That taught me to read the release notes:-)
If you hook b-to-b to a filer with cross-over cables, for a dedicated pipe, and it is not multiple stations (with multiple MAC addrs) through a switch connected filer trunk, you really want to set the policy to round robin on the Sun quad card (after you purchase the unbundled trunking software:-P)
All in all though, pretty cool.
Sun was surprisingly easy to set up - er, for a UNIX box:-)
I'm curious - have any of you guys played with Etherchannel for any other vendor besides Sun? And NT or something? Comments, feedback?
beepy
On Mon, 30 Aug 1999, Brian Pawlowski wrote:
I'm curious - have any of you guys played with Etherchannel for any other vendor besides Sun? And NT or something? Comments, feedback?
Ehhhh, I'm still having problems with ifconfig of virtual interfaces. I tried "ifconfig eta partner eta" and it took, although I don't know what that means semantically. I guess I should trip over the power cables of the partner and find out. Then I came up with another enlightened idea "ifconfig eta -partner 10.10.10.11" that does not do what "ifconfig eta partner 10.10.10.11" did in the past (Oh, BTW, thanks NetApp for changing the syntax of the command between revs). This is the error I received:
Mon Aug 30 10:33:47 CDT [nac101: de1]: duplicate IP address 10.10.10.11!! sent from ethernet address: 00:c0:95:c0:ff:ee
at which point I lost connectivity with the box I was working on. No, the box I was working on was not 10.10.10.11, it was 10.10.10.10. Upon a telnet timeout I found that the filer was magically reconfigured to 10.10.10.11.
I should add that I tried "ifconfig eta partner 10.10.10.11" before only to receive this error:
ifconfig: 10.10.10.11: bad vif partner address
The address is right! If I do the same with a real interface on the side being configured the command works.
I think I'll file several bug reports now.
*The IP and ethernet addresses have been changed to protect something or someone
You sure can...not sure which release supports it.
-marc
On Fri, 27 Aug 1999, Jaye Mathisen wrote:
Can I combine 2 100mbit pipes from a 540 or 630 to something like a Foundry switch to make a 200mbit connection?
Can't get gigabit for a 540, but need a bit more oomph than 100...
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