Re: [j-nsp] CCC on EX, link state propagation
Chris Kawchuk juniperd...@gmail.com writes: BTW, I also saw in the 12.2 Release Notes that LDP-based L2CKTs are now supported on the EX4500/4550. You can maybe use an l2circut/L2CKT instead of a CCC; using martini style status-tlvs to signal end-to-end availability. ...Haven't tried this in the Lab yet. Might be worth a shot to drop the interface ccc-style. Maybe I am reading the release notes wrong, but to me it looks like that only applies to EX4500, not to EX4550. Are you referring to this bit: EX4500 standalone switches and EX4500 Virtual Chassis now support all MPLS features that are supported on EX8200 switches with the following exceptions? /Benny ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
Tim Jackson jackson@gmail.com writes: gigether-options asynchronous-notification is the command for MX Thank you! My Google-fu completely failed when I tried to find the command. /Benny ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
Ben Dale bd...@comlinx.com.au writes: I don't think the EX has this exact capability, but depending on your edge devices, you'd be better off running OAM (both CFM and LFM) which the EXs do support (though sadly not the EX4500/4550): That is an excellent suggestion. Thank you. Some of the links will be carrying BGP/LDP-signalled MPLS traffic, so BFD should save the day for those. Some of the switches which are to be connected through this setup are themselves EX4550's, using LACP. It seems the only failure detection will be LACP itself, which means several seconds of packet loss if a link fails. http://www.juniper.net/techpubs/en_US/junos11.2/topics/concept/cfm-ethernet-oam-ex-series.html http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/concept/ex-series-software-features-overview.html#network-manage-monitor-features-by-platform-table Thank you very much for the links. I haven't tried, but maybe you could tunnel OAM PDUs through your CCC so that your edge devices have direct adjacency? Alternatively, you could write an event script : ( I could :) It is a bit tricky I think. If I use the event script to disable the interface when CCC fails, then the CCC will not ever come up again -- the CCC itself will get disabled along with the interface. Then I need to periodically enable the interface, just to see if CCC comes up. Not nice. More ideas welcome! /Benny ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
Benny Amorsen benny+use...@amorsen.dk writes: Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. I hate to reply to myself, but according to http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/concept/ex-series-software-features-overview.html#mpls-features-by-platform-table the EX4550 cannot do CCC at all. That makes it all rather moot :) The EX4500 can, in 12.2. It looks like I will be doing q-in-q-tunnelling instead of CCC. /Benny ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
BTW, I also saw in the 12.2 Release Notes that LDP-based L2CKTs are now supported on the EX4500/4550. You can maybe use an l2circut/L2CKT instead of a CCC; using martini style status-tlvs to signal end-to-end availability. ...Haven't tried this in the Lab yet. Might be worth a shot to drop the interface ccc-style. - CK. On 2012-10-11, at 11:03 PM, Benny Amorsen benny+use...@amorsen.dk wrote: Benny Amorsen benny+use...@amorsen.dk writes: Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. I hate to reply to myself, but according to http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/concept/ex-series-software-features-overview.html#mpls-features-by-platform-table the EX4550 cannot do CCC at all. That makes it all rather moot :) The EX4500 can, in 12.2. It looks like I will be doing q-in-q-tunnelling instead of CCC. /Benny ___ 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] CCC on EX, link state propagation
I am considering building a very simple setup with a number of ethernet interfaces on one switch each CCC-tunnelled through a common fiber to another switch. I.e. simply emulating a typical ethernet CWDM using EoMPLS. One feature which would be very handy is link state propagation across those EOMPLS links. Ideally, if the fiber breaks, the ports at each end go down so the equipment at each end quickly become aware of the break. Even better if loss of link on a port at one end also shuts down the link at the other end. Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. /Benny ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
MX has a gig ether option for doing this. I'd check and see if EX4550 does. EX 4200 does not AFAIK. On Oct 10, 2012 10:38 AM, Benny Amorsen benny+use...@amorsen.dk wrote: I am considering building a very simple setup with a number of ethernet interfaces on one switch each CCC-tunnelled through a common fiber to another switch. I.e. simply emulating a typical ethernet CWDM using EoMPLS. One feature which would be very handy is link state propagation across those EOMPLS links. Ideally, if the fiber breaks, the ports at each end go down so the equipment at each end quickly become aware of the break. Even better if loss of link on a port at one end also shuts down the link at the other end. Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. /Benny ___ 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] CCC on EX, link state propagation
Hi Benny, On 11/10/2012, at 1:03 AM, Benny Amorsen benny+use...@amorsen.dk wrote: I am considering building a very simple setup with a number of ethernet interfaces on one switch each CCC-tunnelled through a common fiber to another switch. I.e. simply emulating a typical ethernet CWDM using EoMPLS. One feature which would be very handy is link state propagation across those EOMPLS links. Ideally, if the fiber breaks, the ports at each end go down so the equipment at each end quickly become aware of the break. Even better if loss of link on a port at one end also shuts down the link at the other end. Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. I don't think the EX has this exact capability, but depending on your edge devices, you'd be better off running OAM (both CFM and LFM) which the EXs do support (though sadly not the EX4500/4550): http://www.juniper.net/techpubs/en_US/junos11.2/topics/concept/cfm-ethernet-oam-ex-series.html http://www.juniper.net/techpubs/en_US/release-independent/junos/topics/concept/ex-series-software-features-overview.html#network-manage-monitor-features-by-platform-table I haven't tried, but maybe you could tunnel OAM PDUs through your CCC so that your edge devices have direct adjacency? Alternatively, you could write an event script : ( ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] CCC on EX, link state propagation
gigether-options asynchronous-notification is the command for MX -- Tim On Wed, Oct 10, 2012 at 11:16 AM, Tim Jackson jackson@gmail.com wrote: MX has a gig ether option for doing this. I'd check and see if EX4550 does. EX 4200 does not AFAIK. On Oct 10, 2012 10:38 AM, Benny Amorsen benny+use...@amorsen.dk wrote: I am considering building a very simple setup with a number of ethernet interfaces on one switch each CCC-tunnelled through a common fiber to another switch. I.e. simply emulating a typical ethernet CWDM using EoMPLS. One feature which would be very handy is link state propagation across those EOMPLS links. Ideally, if the fiber breaks, the ports at each end go down so the equipment at each end quickly become aware of the break. Even better if loss of link on a port at one end also shuts down the link at the other end. Can the EX series do that? I'm thinking of the EX4550 in particular, but information about other EX-switches is welcome as well. /Benny ___ 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
