Re: [j-nsp] VC-port over Ethernet
Graham,
short answer is - yes, EX-3300 can form VC when connected via 3rd switch.
No special settings are required on the uplink switch. However without
special configuration (q-in-q? jumbo frames?) VC is unstable (see below in
test results).
here is the test setup.
1. Topology:
ASW13 ASW11 --- ASW14
ASW11 is EX-4200-24T with two 10G interfaces
ASW13, ASW14 are EX-3300 with default configuration
2. Configuration
ASW11:
xe-0/1/0 {
description sjc-net-asw13:xe-0/1/2;
unit 0 {
family ethernet-switching;
}
}
xe-0/1/2 {
description sjc-net-asw14:xe-0/1/2;
unit 0 {
family ethernet-switching;
}
}
3. results of tests.
3.1 time T: link up on both 10G ports of ASW11
3.2 time T+2 min: link on one of 10G ports of ASW11 goes down and stays
this way.
Somewhere between 3.1 and 3.2 ASW13 and ASW14 form 2-member VC.
After one of the 10G links goes down, VC obviously becomes crippled.
I also have strong suspicion that connecting vc-port to uplink switch may
result in some nasty 2-minute-long loop that is not blocked by STP. I will
check it tomorrow.
nick
On Wed, Apr 17, 2013 at 5:41 AM, Graham Brown
juniper-...@grahambrown.infowrote:
Nick,
Let us know the results of your testing.
However you can disable the default by issuing the below two commands:
request virtual-chassis vc-port delete pic-slot 1 port 2
request virtual-chassis vc-port delete pic-slot 1 port 3
HTH,
Graham
On 15 April 2013 23:54, Nick Kritsky nick.krit...@gmail.com wrote:
Klaus,
No, I don't want to form VC between 3300 and 4500.
nick
On Mon, Apr 15, 2013 at 2:16 PM, Klaus Groeger kla...@gmail.com wrote:
Just one word, to double check if i understand you. You would like to
form
a VC between 3300 and 4500?
That won't work. You can only form VC between 3300 or between 45xxx and
4200.
Klaus
—
Sent from Mailbox https://bit.ly/SZvoJe for iPhone
On Mon, Apr 15, 2013 at 9:41 AM, Nick Kritsky nick.krit...@gmail.com
wrote:
Thanks. Just to clarify - I am actually trying to prevent this from
happening.
EX-3300 have ports xe-0/1/2 and xe-0/1/3 put in VC-port mode by
default.
So I wonder if two fresh, brand new EX-3300 can form VC when they are
plugged into upstream 4550 using vc-ports.
This can explain some strange behavior i was observing recently, but I
was too busy fixing it, so I didn't run much tests.
I plan to setup small lab for that. I will let you know of the outcome.
nick
On Sun, Apr 14, 2013 at 4:33 PM, Klaus Groeger kla...@gmail.com
wrote:
Hi
I would recommend Q-in-Q on the intermediate switch. I have seen 4550
VC
spanning over metro erhernet, so this should work for 3300 also.
Regards
Klauzi
—
Sent from Mailbox https://bit.ly/SZvoJe for iPhone
On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.com
wrote:
Dear J-NSP,
Can anyone confirm/deny if two EX3300 can form virtual-chassis when
their
vc-ports are connected via third switch?
thanks
nick
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Re: [j-nsp] VC-port over Ethernet
Nick, Let us know the results of your testing. However you can disable the default by issuing the below two commands: request virtual-chassis vc-port delete pic-slot 1 port 2 request virtual-chassis vc-port delete pic-slot 1 port 3 HTH, Graham On 15 April 2013 23:54, Nick Kritsky nick.krit...@gmail.com wrote: Klaus, No, I don't want to form VC between 3300 and 4500. nick On Mon, Apr 15, 2013 at 2:16 PM, Klaus Groeger kla...@gmail.com wrote: Just one word, to double check if i understand you. You would like to form a VC between 3300 and 4500? That won't work. You can only form VC between 3300 or between 45xxx and 4200. Klaus — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Mon, Apr 15, 2013 at 9:41 AM, Nick Kritsky nick.krit...@gmail.com wrote: Thanks. Just to clarify - I am actually trying to prevent this from happening. EX-3300 have ports xe-0/1/2 and xe-0/1/3 put in VC-port mode by default. So I wonder if two fresh, brand new EX-3300 can form VC when they are plugged into upstream 4550 using vc-ports. This can explain some strange behavior i was observing recently, but I was too busy fixing it, so I didn't run much tests. I plan to setup small lab for that. I will let you know of the outcome. nick On Sun, Apr 14, 2013 at 4:33 PM, Klaus Groeger kla...@gmail.com wrote: Hi I would recommend Q-in-Q on the intermediate switch. I have seen 4550 VC spanning over metro erhernet, so this should work for 3300 also. Regards Klauzi — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.com wrote: Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp -- Graham Brown Twitter - @mountainrescuer https://twitter.com/#!/mountainrescuer LinkedIn http://www.linkedin.com/in/grahamcbrown ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] VC-port over Ethernet
Thanks. Just to clarify - I am actually trying to prevent this from happening. EX-3300 have ports xe-0/1/2 and xe-0/1/3 put in VC-port mode by default. So I wonder if two fresh, brand new EX-3300 can form VC when they are plugged into upstream 4550 using vc-ports. This can explain some strange behavior i was observing recently, but I was too busy fixing it, so I didn't run much tests. I plan to setup small lab for that. I will let you know of the outcome. nick On Sun, Apr 14, 2013 at 4:33 PM, Klaus Groeger kla...@gmail.com wrote: Hi I would recommend Q-in-Q on the intermediate switch. I have seen 4550 VC spanning over metro erhernet, so this should work for 3300 also. Regards Klauzi — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.comwrote: Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] VC-port over Ethernet
Just one word, to double check if i understand you. You would like to form a VC between 3300 and 4500? That won't work. You can only form VC between 3300 or between 45xxx and 4200. Klaus — Sent from Mailbox for iPhone On Mon, Apr 15, 2013 at 9:41 AM, Nick Kritsky nick.krit...@gmail.com wrote: Thanks. Just to clarify - I am actually trying to prevent this from happening. EX-3300 have ports xe-0/1/2 and xe-0/1/3 put in VC-port mode by default. So I wonder if two fresh, brand new EX-3300 can form VC when they are plugged into upstream 4550 using vc-ports. This can explain some strange behavior i was observing recently, but I was too busy fixing it, so I didn't run much tests. I plan to setup small lab for that. I will let you know of the outcome. nick On Sun, Apr 14, 2013 at 4:33 PM, Klaus Groeger kla...@gmail.com wrote: Hi I would recommend Q-in-Q on the intermediate switch. I have seen 4550 VC spanning over metro erhernet, so this should work for 3300 also. Regards Klauzi — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.comwrote: Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] VC-port over Ethernet
Klaus, No, I don't want to form VC between 3300 and 4500. nick On Mon, Apr 15, 2013 at 2:16 PM, Klaus Groeger kla...@gmail.com wrote: Just one word, to double check if i understand you. You would like to form a VC between 3300 and 4500? That won't work. You can only form VC between 3300 or between 45xxx and 4200. Klaus — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Mon, Apr 15, 2013 at 9:41 AM, Nick Kritsky nick.krit...@gmail.comwrote: Thanks. Just to clarify - I am actually trying to prevent this from happening. EX-3300 have ports xe-0/1/2 and xe-0/1/3 put in VC-port mode by default. So I wonder if two fresh, brand new EX-3300 can form VC when they are plugged into upstream 4550 using vc-ports. This can explain some strange behavior i was observing recently, but I was too busy fixing it, so I didn't run much tests. I plan to setup small lab for that. I will let you know of the outcome. nick On Sun, Apr 14, 2013 at 4:33 PM, Klaus Groeger kla...@gmail.com wrote: Hi I would recommend Q-in-Q on the intermediate switch. I have seen 4550 VC spanning over metro erhernet, so this should work for 3300 also. Regards Klauzi — Sent from Mailbox https://bit.ly/SZvoJe for iPhone On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.comwrote: Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] VC-port over Ethernet
Hi I would recommend Q-in-Q on the intermediate switch. I have seen 4550 VC spanning over metro erhernet, so this should work for 3300 also. Regards Klauzi — Sent from Mailbox for iPhone On Sat, Apr 13, 2013 at 9:21 PM, Nick Kritsky nick.krit...@gmail.com wrote: Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
[j-nsp] VC-port over Ethernet
Dear J-NSP, Can anyone confirm/deny if two EX3300 can form virtual-chassis when their vc-ports are connected via third switch? thanks nick ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
