Re: [j-nsp] How reliable is EX multichassis? 3300 and 8200 switches

2012-11-02 Thread Luca Salvatore
Confirmed as a bug.  AE interfaces flap when master switch in VC reboots.
Fixed in 11.4r6 (not released yet) or 12.1

Luca


-Original Message-
From: Luca Salvatore 
Sent: Thursday, 1 November 2012 12:51 PM
To: Luca Salvatore; Morgan McLean
Cc: juniper-nsp@puck.nether.net
Subject: RE: [j-nsp] How reliable is EX multichassis? 3300 and 8200 switches

Just an update on this after some more troubleshooting today.
I'm only seeing the issue on my EX4500-VC switches.

On my EX4200-VC switches, when the master reboots my OSPF neighbours stay up - 
i drop about 2 pings but that's it.
The EX4500 switches have the exact same configuration.  All switches are 
running 11.4r2.14

Probably log this with JTAC - looks to me like a bug.

Luca


-Original Message-
From: juniper-nsp-boun...@puck.nether.net 
[mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Luca Salvatore
Sent: Thursday, 1 November 2012 7:32 AM
To: Morgan McLean
Cc: juniper-nsp@puck.nether.net
Subject: Re: [j-nsp] How reliable is EX multichassis? 3300 and 8200 switches

I see the 60 sec delay when crashing master. It seems the backup switch takes a 
while to notice the master is gone. But my main delay is the fact that my OSPF 
neighbours are lost when master crashes.

@Doug, nonstop bridging is also configured.

Luca

On 01/11/2012, at 7:25 AM, Morgan McLean 
wrx...@gmail.commailto:wrx...@gmail.com wrote:

Did you see the failover times I mentioned? Is that expected timing?

8 seconds using VC-LAG w/ LACP to a third switch when pulling masters power 
over 60 seconds when crashing master

Morgan

On Wed, Oct 31, 2012 at 1:20 PM, Doug Hanks 
dha...@juniper.netmailto:dha...@juniper.net wrote:
Don't forget to configure NSB to help with LACP and other L2 stuffs.


set ethernet-switching-options nonstop-bridging

On 10/31/12 1:05 PM, Luca Salvatore 
l...@ninefold.commailto:l...@ninefold.com wrote:

Yes so GRES and NSR is configured am correctly then?

The AE is a VC-lag with one member on each switch.

Luca

On 01/11/2012, at 3:56 AM, Stefan Fouant
sfou...@shortestpathfirst.netmailto:sfou...@shortestpathfirst.net wrote:

 On Oct 31, 2012, at 10:01 AM, Luca Salvatore 
 l...@ninefold.commailto:l...@ninefold.com wrote:

 Yep my mistake.
 However I do have 'set chassis redundancy graceful-switchover'
configured as well as 'set protocols nonestop-routing'

 On 31/10/2012, at 11:24 PM, Stefan Fouant
sfou...@shortestpathfirst.netmailto:sfou...@shortestpathfirst.net
mailto:sfou...@shortestpathfirst.netmailto:sfouant@shortestpathfirst
.net
wrote:

 I think you are confusing GRES w/ GR.  NSR and GRES are NOT mutually 
exclusive and in fact NSR requires it to function.

 'set chassis redundancy graceful-switchover' is GRES, not GR.

 What I actually see when the master switch robots is that the AE 
interfaces between my devices flaps. I think this causes my OSPF 
neighbours to go down.

 I see this in the logs: rpd[2241]: RPD_OSPF_NBRDOWN: OSPF neighbor
10.255.255.9 (realm ospf-v2 vlan.83 area 0.0.0.1) state changed from 
Full to Down due to KillNbr (event reason: interface went down

 Which device is the ae interface tied to?  Is it a VC-LAG with 
members tied to multiple physical devices, or is it comprised of only 
links belonging to a single device?

 Stefan Fouant
 JNCIE-SEC, JNCIE-SP, JNCIE-ENT, JNCI
 Systems Engineer, Juniper Networks





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Re: [j-nsp] Layer 2 circuit - Traffic not flowing between Cisco and Juniper with mismatched VLAN ID

2012-11-02 Thread sthaug
 I ve tried all of the recommended options provided but it did not work out,
...
 if the VLAN ID are same on both Cisco and Juniper, traffic is passing
 through but with different VLAN ID, traffic is not...
 
 Steinar - when you said, pseudowire working fine between cisco and juniper,
 did you mean even with different VLAN ID.. in our network we only have same
 VLAN ID if the pseudowire is built between cisco and juniper...

Known working example with different VLAN IDs at each end, corresponding
to your option 3 at the Juniper end. Equipment is 12K / IOS 12.0(32)SY
and MX / JunOS 10.4:

interface GigabitEthernet7/0/0
 mtu 4470
 no ip address

interface GigabitEthernet7/0/0.24701423
 encapsulation dot1Q 247
 xconnect 10.0.0.1 68790300 encapsulation mpls

interfaces {
ge-1/0/0 {
flexible-vlan-tagging;
mtu 4488;
encapsulation flexible-ethernet-services;
unit 1084 {
encapsulation vlan-ccc;
vlan-id 1423;
input-vlan-map {
swap;
vlan-id 247;
}
output-vlan-map swap;
}
}
}

protocols {
l2circuit {
neighbor 10.0.0.2 {
interface ge-1/0/0.1084 {
virtual-circuit-id 68790300;
no-control-word;
mtu 4470;
}
}
}
}

Steinar Haug, Nethelp consulting, sth...@nethelp.no
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Re: [j-nsp] Layer 2 circuit - Traffic not flowing between Cisco and Juniper with mismatched VLAN ID

2012-11-02 Thread Saku Ytti
On (2012-11-02 11:04 +0530), Arun Kumar wrote:

 Option 1:
 
 encapsulation vlan-ccc;
 vlan-id 601
 input-vlan-map pop;
 output-vlan-map push;

Shouldn't work. VXR side is VLAN mode, and will barf. Missing family 'ccc'.

 Option 2:
 
 
   encap vlan-ccc;
   vlan-tags outer 601;
   output-vlan-map swap;
   family ccc;

Should work. We have literally hundreds of these, none where VLANs match in
each end. Both sides will swap SVLAN on egress.

show mpls l2transport vc X detail -- from cisco
show l2circuit connections interface X extensive - from juniper

 Option 3:
 
 encapsulation vlan-ccc;
 vlan-id 601;
 input-vlan-map {
 swap;
 vlan-id 610;
 }
 output-vlan-map swap;

Should work (I presume family ccc is there). Useles input-vlan-map, but
it doesn't break anything either.

 if the VLAN ID are same on both Cisco and Juniper, traffic is passing
 through but with different VLAN ID, traffic is not...

What Cisco IOS, if you have older than 7-8 years, then Cisco is not
supporting output vlan swap. (7304 for example does not support vlan
rewrite, or didn't 4 years ago when I last looked)

-- 
  ++ytti
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Re: [j-nsp] How reliable is EX multichassis? 3300 and 8200 switches

2012-11-02 Thread Billy Sneed

On 11/02/2012 02:21 AM, Luca Salvatore wrote:

Confirmed as a bug.  AE interfaces flap when master switch in VC reboots.
Fixed in 11.4r6 (not released yet) or 12.1

Luca


Do you have the PR# by chance, or any info I can read up on at juniper.net?
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[j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread John Neiberger
We have a very odd problem that we've been dealing with for a couple of
weeks. JTAC is involved but we have not come to a resolution yet. The gist
of the problem is that we have two MX960s and we're running VRRP on
multiple interfaces with different Cisco switches in between each pair of
Juniper interfaces.

[J] - [C][C]-- [J]

The switches are just layer two and we're running VRRP on the routers. The
problem is that one day, three of the interfaces on the backup router
suddenly stopped receiving VRRP messages from its peer. JTAC seems to think
that the Cisco switches just suddenly stopped forwarding VRRP messages to
the backup router, but that makes zero sense unless some bizarre issue just
happened to occur on multiple unrelated switches at exactly the same
moment. I'm still leaning toward a problem on the router.

Which leads me to my question. What is the risk of restarting the VRRP
process? I see we have soft and graceful as options. Both sound fairly
low-risk. I'm tempted to just restart the process on the backup router to
see if that fixes the problem.

What do you think?

Thanks,
John
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Re: [j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread Per Granath
 We have a very odd problem that we've been dealing with for a couple of
 weeks. JTAC is involved but we have not come to a resolution yet. The gist of
 the problem is that we have two MX960s and we're running VRRP on
 multiple interfaces with different Cisco switches in between each pair of
 Juniper interfaces.
 
 [J] - [C][C]-- [J]
 
 The switches are just layer two and we're running VRRP on the routers. The
 problem is that one day, three of the interfaces on the backup router
 suddenly stopped receiving VRRP messages from its peer. JTAC seems to
 think that the Cisco switches just suddenly stopped forwarding VRRP
 messages to the backup router, but that makes zero sense unless some
 bizarre issue just happened to occur on multiple unrelated switches at
 exactly the same moment. I'm still leaning toward a problem on the router.

Did you try disabling IGMP snooping for the VLAN on the switches?

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Re: [j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread Alex Arseniev
Well, that's fairly straightforward - either (1) VRRP on master [J] stopped 
sending or (2) CSCO switches stopped forwarding VRRP hellos, or (3) backup 
[J] drops incoming VRRP hellos.
You can verify (1) by using monitor traffic interface blah no-resolve 
size .

(2) could be verified with SPAN/RSPAN
(3) cannot be verified with monitor traffic interface _if_ there is an 
input FW filter. monitor traffic interface a.k.a. tcpdump does not capture 
packets dropped by FW filter. Which begs a question - do you have an input 
FW filter on VRRP interfaces or lo0 and if yes, do you allow protocol vrrp 
as well as AH/proto 51 and have you added/changed VRRP auth type recently? 
Proto 51 is used when VRRP MD5 auth is configured. In any case, I'd suggest 
to configure a FW filter to log/syslog incoming VRRP packets (dst.ip 
224.0.0.18/32) on backup [J].

HTH
Rgds
Alex

- Original Message - 
From: John Neiberger jneiber...@gmail.com

To: juniper-nsp@puck.nether.net
Sent: Friday, November 02, 2012 3:37 PM
Subject: [j-nsp] Strange VRRP problem -- question about restarting process



We have a very odd problem that we've been dealing with for a couple of
weeks. JTAC is involved but we have not come to a resolution yet. The gist
of the problem is that we have two MX960s and we're running VRRP on
multiple interfaces with different Cisco switches in between each pair of
Juniper interfaces.

[J] - [C][C]-- [J]

The switches are just layer two and we're running VRRP on the routers. The
problem is that one day, three of the interfaces on the backup router
suddenly stopped receiving VRRP messages from its peer. JTAC seems to 
think

that the Cisco switches just suddenly stopped forwarding VRRP messages to
the backup router, but that makes zero sense unless some bizarre issue 
just

happened to occur on multiple unrelated switches at exactly the same
moment. I'm still leaning toward a problem on the router.

Which leads me to my question. What is the risk of restarting the VRRP
process? I see we have soft and graceful as options. Both sound fairly
low-risk. I'm tempted to just restart the process on the backup router to
see if that fixes the problem.

What do you think?

Thanks,
John
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[j-nsp] Running a EX3200-48P with a 320W power

2012-11-02 Thread Dave Peters - Terabit Systems
Hey everybody--

I got my hands on an EX-3200 PoE switch, and I don't need the PoE.  Can I run 
it with a  320W power, rather than the 740W (which I don't have).

I'm not seeing any errors.  Does this just disable PoE, or am I looking at 
other problems?

Thanks much.

--Dave Peters



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[j-nsp] ex4200 doesn't reply to jnxCosIfqIfIndex

2012-11-02 Thread ryanL
does anyone know why this might be the case?

my lab box is running 11.4R2.14. when querying the subject oid i'm getting back:

JUNIPER-COS-MIB::jnxCosIfqIfIndex = No Such Object available on this
agent at this OID

my googles comes up blank. also tested against an mx80 running 11.2
with the same response.

thanks!

ryan
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Re: [j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread John Neiberger
Sorry for the lack of replies. I got swamped today and haven't had a chance
to look at this much. Another one of our engineers has been working it. I
did notice that the three interfaces I originally looked at back when this
started all seem to be fine now. However, this weird behavior seems to have
moved to some other interfaces. I'm going to need to investigate a bit more
to find out what changed when I wasn't looking.  :)

We do not have IGMP snooping enabled on the Cisco switches and we have no
inbound filters that would block traffic. In fact, we have this identical
config on several different routers and dozens of interfaces and switches
with no problem. Whatever is wrong seems to be isolated to this router.
I'll try to regroup and get the latest info.

Thanks!
John


On Fri, Nov 2, 2012 at 11:18 AM, Alex Arseniev alex.arsen...@gmail.comwrote:

 Well, that's fairly straightforward - either (1) VRRP on master [J]
 stopped sending or (2) CSCO switches stopped forwarding VRRP hellos, or (3)
 backup [J] drops incoming VRRP hellos.
 You can verify (1) by using monitor traffic interface blah no-resolve
 size .
 (2) could be verified with SPAN/RSPAN
 (3) cannot be verified with monitor traffic interface _if_ there is an
 input FW filter. monitor traffic interface a.k.a. tcpdump does not
 capture packets dropped by FW filter. Which begs a question - do you have
 an input FW filter on VRRP interfaces or lo0 and if yes, do you allow
 protocol vrrp as well as AH/proto 51 and have you added/changed VRRP auth
 type recently? Proto 51 is used when VRRP MD5 auth is configured. In any
 case, I'd suggest to configure a FW filter to log/syslog incoming VRRP
 packets (dst.ip 224.0.0.18/32) on backup [J].
 HTH
 Rgds
 Alex

 - Original Message - From: John Neiberger jneiber...@gmail.com
 To: juniper-nsp@puck.nether.net
 Sent: Friday, November 02, 2012 3:37 PM
 Subject: [j-nsp] Strange VRRP problem -- question about restarting process


  We have a very odd problem that we've been dealing with for a couple of
 weeks. JTAC is involved but we have not come to a resolution yet. The gist
 of the problem is that we have two MX960s and we're running VRRP on
 multiple interfaces with different Cisco switches in between each pair of
 Juniper interfaces.

 [J] - [C][C]-- [J]

 The switches are just layer two and we're running VRRP on the routers. The
 problem is that one day, three of the interfaces on the backup router
 suddenly stopped receiving VRRP messages from its peer. JTAC seems to
 think
 that the Cisco switches just suddenly stopped forwarding VRRP messages to
 the backup router, but that makes zero sense unless some bizarre issue
 just
 happened to occur on multiple unrelated switches at exactly the same
 moment. I'm still leaning toward a problem on the router.

 Which leads me to my question. What is the risk of restarting the VRRP
 process? I see we have soft and graceful as options. Both sound fairly
 low-risk. I'm tempted to just restart the process on the backup router to
 see if that fixes the problem.

 What do you think?

 Thanks,
 John
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Re: [j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread John Neiberger
Okay, I've been looking at this for a little bit and it's just really
bizarre. I was wrong about the connectivity earlier. It's really just a
single Cisco 4948 in the middle between these two MX960s. IGMP snooping is
not enabled, nor are there any inbound filters on the routers. I have
verified that our RE filter is allowing VRRP. We have verified with the
monitor traffic command that router 1 is sending and receiving vrrp
multicasts, but router 2 is not receiving them, only sending them.

The switch is a pretty vanilla config. The two links are in the same VLAN
and there are no special features enabled, like MAC filtering or whatever.
It's very straightforward, which is why we're all stumped. Something is
stopping those multicasts from reaching router 2, but for the life of me I
don't see what it could be.


On Fri, Nov 2, 2012 at 3:53 PM, John Neiberger jneiber...@gmail.com wrote:

 Sorry for the lack of replies. I got swamped today and haven't had a
 chance to look at this much. Another one of our engineers has been working
 it. I did notice that the three interfaces I originally looked at back when
 this started all seem to be fine now. However, this weird behavior seems to
 have moved to some other interfaces. I'm going to need to investigate a bit
 more to find out what changed when I wasn't looking.  :)

 We do not have IGMP snooping enabled on the Cisco switches and we have no
 inbound filters that would block traffic. In fact, we have this identical
 config on several different routers and dozens of interfaces and switches
 with no problem. Whatever is wrong seems to be isolated to this router.
 I'll try to regroup and get the latest info.

 Thanks!
 John


 On Fri, Nov 2, 2012 at 11:18 AM, Alex Arseniev alex.arsen...@gmail.comwrote:

 Well, that's fairly straightforward - either (1) VRRP on master [J]
 stopped sending or (2) CSCO switches stopped forwarding VRRP hellos, or (3)
 backup [J] drops incoming VRRP hellos.
 You can verify (1) by using monitor traffic interface blah no-resolve
 size .
 (2) could be verified with SPAN/RSPAN
 (3) cannot be verified with monitor traffic interface _if_ there is an
 input FW filter. monitor traffic interface a.k.a. tcpdump does not
 capture packets dropped by FW filter. Which begs a question - do you have
 an input FW filter on VRRP interfaces or lo0 and if yes, do you allow
 protocol vrrp as well as AH/proto 51 and have you added/changed VRRP auth
 type recently? Proto 51 is used when VRRP MD5 auth is configured. In any
 case, I'd suggest to configure a FW filter to log/syslog incoming VRRP
 packets (dst.ip 224.0.0.18/32) on backup [J].
 HTH
 Rgds
 Alex

 - Original Message - From: John Neiberger jneiber...@gmail.com
 
 To: juniper-nsp@puck.nether.net
 Sent: Friday, November 02, 2012 3:37 PM
 Subject: [j-nsp] Strange VRRP problem -- question about restarting process


  We have a very odd problem that we've been dealing with for a couple of
 weeks. JTAC is involved but we have not come to a resolution yet. The
 gist
 of the problem is that we have two MX960s and we're running VRRP on
 multiple interfaces with different Cisco switches in between each pair of
 Juniper interfaces.

 [J] - [C][C]-- [J]

 The switches are just layer two and we're running VRRP on the routers.
 The
 problem is that one day, three of the interfaces on the backup router
 suddenly stopped receiving VRRP messages from its peer. JTAC seems to
 think
 that the Cisco switches just suddenly stopped forwarding VRRP messages to
 the backup router, but that makes zero sense unless some bizarre issue
 just
 happened to occur on multiple unrelated switches at exactly the same
 moment. I'm still leaning toward a problem on the router.

 Which leads me to my question. What is the risk of restarting the VRRP
 process? I see we have soft and graceful as options. Both sound
 fairly
 low-risk. I'm tempted to just restart the process on the backup router to
 see if that fixes the problem.

 What do you think?

 Thanks,
 John
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Re: [j-nsp] Strange VRRP problem -- question about restarting process

2012-11-02 Thread John Neiberger
Sorry for the barrage of emails, but I wanted to mention that we can ping
in both directions through the switch from one router interface to the
other, so we know broadcasts (ARP) and unicast work. How could the problem
be limited to only multicast if IGMP snooping is off? This is such a simple
scenario that it's really bugging me that I can't figure it out.  lol


On Fri, Nov 2, 2012 at 4:43 PM, John Neiberger jneiber...@gmail.com wrote:

 Okay, I've been looking at this for a little bit and it's just really
 bizarre. I was wrong about the connectivity earlier. It's really just a
 single Cisco 4948 in the middle between these two MX960s. IGMP snooping is
 not enabled, nor are there any inbound filters on the routers. I have
 verified that our RE filter is allowing VRRP. We have verified with the
 monitor traffic command that router 1 is sending and receiving vrrp
 multicasts, but router 2 is not receiving them, only sending them.

 The switch is a pretty vanilla config. The two links are in the same VLAN
 and there are no special features enabled, like MAC filtering or whatever.
 It's very straightforward, which is why we're all stumped. Something is
 stopping those multicasts from reaching router 2, but for the life of me I
 don't see what it could be.


 On Fri, Nov 2, 2012 at 3:53 PM, John Neiberger jneiber...@gmail.comwrote:

 Sorry for the lack of replies. I got swamped today and haven't had a
 chance to look at this much. Another one of our engineers has been working
 it. I did notice that the three interfaces I originally looked at back when
 this started all seem to be fine now. However, this weird behavior seems to
 have moved to some other interfaces. I'm going to need to investigate a bit
 more to find out what changed when I wasn't looking.  :)

 We do not have IGMP snooping enabled on the Cisco switches and we have no
 inbound filters that would block traffic. In fact, we have this identical
 config on several different routers and dozens of interfaces and switches
 with no problem. Whatever is wrong seems to be isolated to this router.
 I'll try to regroup and get the latest info.

 Thanks!
 John


 On Fri, Nov 2, 2012 at 11:18 AM, Alex Arseniev 
 alex.arsen...@gmail.comwrote:

 Well, that's fairly straightforward - either (1) VRRP on master [J]
 stopped sending or (2) CSCO switches stopped forwarding VRRP hellos, or (3)
 backup [J] drops incoming VRRP hellos.
 You can verify (1) by using monitor traffic interface blah no-resolve
 size .
 (2) could be verified with SPAN/RSPAN
 (3) cannot be verified with monitor traffic interface _if_ there is an
 input FW filter. monitor traffic interface a.k.a. tcpdump does not
 capture packets dropped by FW filter. Which begs a question - do you have
 an input FW filter on VRRP interfaces or lo0 and if yes, do you allow
 protocol vrrp as well as AH/proto 51 and have you added/changed VRRP auth
 type recently? Proto 51 is used when VRRP MD5 auth is configured. In any
 case, I'd suggest to configure a FW filter to log/syslog incoming VRRP
 packets (dst.ip 224.0.0.18/32) on backup [J].
 HTH
 Rgds
 Alex

 - Original Message - From: John Neiberger 
 jneiber...@gmail.com
 To: juniper-nsp@puck.nether.net
 Sent: Friday, November 02, 2012 3:37 PM
 Subject: [j-nsp] Strange VRRP problem -- question about restarting
 process


  We have a very odd problem that we've been dealing with for a couple of
 weeks. JTAC is involved but we have not come to a resolution yet. The
 gist
 of the problem is that we have two MX960s and we're running VRRP on
 multiple interfaces with different Cisco switches in between each pair
 of
 Juniper interfaces.

 [J] - [C][C]-- [J]

 The switches are just layer two and we're running VRRP on the routers.
 The
 problem is that one day, three of the interfaces on the backup router
 suddenly stopped receiving VRRP messages from its peer. JTAC seems to
 think
 that the Cisco switches just suddenly stopped forwarding VRRP messages
 to
 the backup router, but that makes zero sense unless some bizarre issue
 just
 happened to occur on multiple unrelated switches at exactly the same
 moment. I'm still leaning toward a problem on the router.

 Which leads me to my question. What is the risk of restarting the VRRP
 process? I see we have soft and graceful as options. Both sound
 fairly
 low-risk. I'm tempted to just restart the process on the backup router
 to
 see if that fixes the problem.

 What do you think?

 Thanks,
 John
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Re: [j-nsp] Running a EX3200-48P with a 320W power

2012-11-02 Thread Ben Dale
On 03/11/2012, at 3:55 AM, Dave Peters - Terabit Systems 
d...@terabitsystems.com wrote:

 Hey everybody--
 
 I got my hands on an EX-3200 PoE switch, and I don't need the PoE.  Can I run 
 it with a  320W power, rather than the 740W (which I don't have).
 
 I'm not seeing any errors.  Does this just disable PoE, or am I looking at 
 other problems?

I vaguely remember trying this once with a 600W PSU in a 48P and as I recall it 
disabled half the PoE ports.  My memory is hazy though.

But yes, no other issues expected.

Ben


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Re: [j-nsp] How reliable is EX multichassis? 3300 and 8200 switches

2012-11-02 Thread Luca Salvatore
I was told PR/677087 but its currently marked as internal so not public


On 02/11/2012, at 11:24 PM, Billy Sneed bi...@middlebury.edu wrote:

 On 11/02/2012 02:21 AM, Luca Salvatore wrote:
 Confirmed as a bug.  AE interfaces flap when master switch in VC reboots.
 Fixed in 11.4r6 (not released yet) or 12.1
 
 Luca
 
 Do you have the PR# by chance, or any info I can read up on at juniper.net?
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