Re: [j-nsp] EX4200 VC odd routing issues
Thanks Dan, I believe there's a strong likelihood that 10.0S6.1 may solve my MCAST issue. I'm still gathering fact of the routing issue and my testing appears to be inconsistent with the system's folks testing. On a related note, what are the recommendations and config options for EX's where system cluster nodes are distributed across cabinets and different switches (stand alone, not VC), MAC aging, grat. ARP, etc. ? Thanks, -b -Original Message- From: Dan Farrell [mailto:da...@appliedi.net] Sent: Monday, August 09, 2010 12:19 PM To: Bill Blackford; 'juniper-nsp' Subject: RE: EX4200 VC odd routing issues You are encouraged to take your 4200 VC and upgrade it to 10.0S6.1. I realize that you are likely not using hundreds of RVI's, but if you are, this similar behavior can be exhibited. This is what happened- I had about 750 RVI's on a 4200 VC, and it was like a overfilled tomato truck of how many could actually be working at any given time (as one tomato gets on the front of the truck, one would fall off the back), and would randomly not work with some at random times. It was narrowed down to an issue specifically addressed in 10.0S1.1, now 10.0S6.1. There are other PR's mentioned that seem to touch protocols you're having issues with, you should review this link and use it- https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2010-06-820&viewMode=view If you are interested in the details of my specific case I'll be happy to share them. Dan Farrell Applied Innovations Corp. da...@appliedi.net -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Bill Blackford Sent: Monday, August 09, 2010 2:06 PM To: 'juniper-nsp' Subject: [j-nsp] EX4200 VC odd routing issues EX4200-24T X2 (VC) Layer3 10.1R1.8 EX3200-48T (switch1 and switch2) Layer2 rack switches. 10.0S1.1 I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen. Problem 1. Inter-vlan routing. I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change. Problem 2. (separate issue) Multicast on same switch/same vlan. I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. Thank you in advance for any shred thoughts. -b -- Bill Blackford Senior Network Engineer Technology Systems Group Northwest Regional ESD Logged into reality and abusing my sudo priviledges ___ 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] EX4200 VC odd routing issues
You are encouraged to take your 4200 VC and upgrade it to 10.0S6.1. I realize that you are likely not using hundreds of RVI's, but if you are, this similar behavior can be exhibited. This is what happened- I had about 750 RVI's on a 4200 VC, and it was like a overfilled tomato truck of how many could actually be working at any given time (as one tomato gets on the front of the truck, one would fall off the back), and would randomly not work with some at random times. It was narrowed down to an issue specifically addressed in 10.0S1.1, now 10.0S6.1. There are other PR's mentioned that seem to touch protocols you're having issues with, you should review this link and use it- https://www.juniper.net/alerts/viewalert.jsp?actionBtn=Search&txtAlertNumber=PSN-2010-06-820&viewMode=view If you are interested in the details of my specific case I'll be happy to share them. Dan Farrell Applied Innovations Corp. da...@appliedi.net -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Bill Blackford Sent: Monday, August 09, 2010 2:06 PM To: 'juniper-nsp' Subject: [j-nsp] EX4200 VC odd routing issues EX4200-24T X2 (VC) Layer3 10.1R1.8 EX3200-48T (switch1 and switch2) Layer2 rack switches. 10.0S1.1 I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen. Problem 1. Inter-vlan routing. I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change. Problem 2. (separate issue) Multicast on same switch/same vlan. I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. Thank you in advance for any shred thoughts. -b -- Bill Blackford Senior Network Engineer Technology Systems Group Northwest Regional ESD Logged into reality and abusing my sudo priviledges ___ 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] EX4200 VC odd routing issues
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Hello, I had similiar problem with multicast hp stack. It truns out that on these ports igmp snooping need to be switched off becouse ex doesn't recognize it as valid protocol ( i mean hp stacking multicast). Regards, Piotr Bratkowski W dniu 2010-08-09 20:06, Bill Blackford pisze: > EX4200-24T X2 (VC) Layer3 > 10.1R1.8 > > EX3200-48T (switch1 and switch2) Layer2 rack switches. > 10.0S1.1 > > > > I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen. > > Problem 1. Inter-vlan routing. > I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change. > > > > > Problem 2. (separate issue) Multicast on same switch/same vlan. > I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. > > > Thank you in advance for any shred thoughts. > > -b > > -- > Bill Blackford > Senior Network Engineer > Technology Systems Group > Northwest Regional ESD > > Logged into reality and abusing my sudo priviledges > > > ___ > juniper-nsp mailing list juniper-nsp@puck.nether.net > https://puck.nether.net/mailman/listinfo/juniper-nsp > -BEGIN PGP SIGNATURE- Version: GnuPG v1.4.10 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBAgAGBQJMYEj/AAoJEFmGJVrtk3rVlkAH/AqqV+k0eUtmhwgO9s8DXwm+ l7Cfhk9zI92rlNAy7nxVedCj94cglLLt0MhS/cQ9VJm95JsepaehfsIYeOOHsDUk psMr1dF5PDSOR6AFzkCNHU9oco+sFZ3b62dpEkqdwBjiPWcwQf9np/FHYYfh4zJ+ qRNvjNXruy6nUmCm52jdJmH3LCVG7v7D4LuIJXtCXJ2TQoi4ObYTZdwLWSq3NO2o TcYWuf9gUsDUqULbGNweGzVT6F8+SqssrZY0hDrb7c4GqZbQsHXCRM8WmYc8oaE7 dmCL3WET62bpfiUkWs98bOzz4o+pq601MYCCBuzUgbbb1sJPdS6d/gcnXeEHKK8= =8ThR -END PGP SIGNATURE- ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] EX4200 VC odd routing issues
I'm flying blind but sometimes this is normal in single hop behaviors. Can you post a dump of the traceroute so we can fully see it? For problem two. Enable igmp as well. It is needed for querier services. On Cisco when you enable Pim on the interface igmp is automatically enabled. Enable Pim if you need it as well. On Aug 9, 2010 2:19 PM, "Bill Blackford" wrote: > EX4200-24T X2 (VC) Layer3 > 10.1R1.8 > > EX3200-48T (switch1 and switch2) Layer2 rack switches. > 10.0S1.1 > > > > I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen. > > Problem 1. Inter-vlan routing. > I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change. > > > > > Problem 2. (separate issue) Multicast on same switch/same vlan. > I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. > > > Thank you in advance for any shred thoughts. > > -b > > -- > Bill Blackford > Senior Network Engineer > Technology Systems Group > Northwest Regional ESD > > Logged into reality and abusing my sudo priviledges > > > ___ > 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] EX4200 VC odd routing issues
EX4200-24T X2 (VC) Layer3 10.1R1.8 EX3200-48T (switch1 and switch2) Layer2 rack switches. 10.0S1.1 I don't have enough empirical data to offer but I figured I'd ask the group in case any of this behavior has been seen. Problem 1. Inter-vlan routing. I'm seeing issues with simple routing from vlanA on switch1 to vlanB on switch2. Both switch1 and switch2 connect via L2 ae trunks to the EX4200 VC. All Vlans are consistent throughout all switches. RVI's on the Layer3 VC are correct. I am also seeing a traceroute from hostA on switch1 to hostB on switch2 to return only the dest host, not the gateway (VC) followed by the dest host as would be expected (IOW, a single hop). The EX4200 just replaced a C3750 VC, the rack switches mentioned did not change. Problem 2. (separate issue) Multicast on same switch/same vlan. I have two hosts that can normally communicate via mcast that now that they're on a Juniper EX cannot. I haven't changed the default of "igmp-snooping vlan all". I move these hosts back to the "C" switch and mcast functions again. Thank you in advance for any shred thoughts. -b -- Bill Blackford Senior Network Engineer Technology Systems Group Northwest Regional ESD Logged into reality and abusing my sudo priviledges ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
