Re: [j-nsp] MPLS EXP bit marking question
One reason to do this is to use a different egress PE classification scheme and rewrite ruleset than what is used in the core. This allows for setting different core EXP values than what would be preserved at egress and then, potentially, used for egress marking, thus maintaining TOS transparency end-to-end. I believe this is called the short-pipe model. C On Jun 8, 2009, at 8:26 AM, Lynch, Tomas wrote: Why would you want to do that? Labels are used only inside your backbone where you have the same QoS policy in all the routers. It's going to be a burden to configure QoS policies on interfaces because you will have to think is this router doing the PHP or not? -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Li Zhu Sent: Sunday, June 07, 2009 7:46 PM To: mas...@nexlinx.net.pk Cc: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] MPLS EXP bit marking question Masood, Nugroho Thank you for the reply. I agree with both of you that rewrite takes effect on both inner and outer mpls label. My next question is: what if I want to mark inner and outer MPLS label differently? Say I want mark the inner exp with 5 and outer exp with 6? Is it possible to achieve this? Thanks, Li On Sun, Jun 7, 2009 at 4:10 PM, mas...@nexlinx.net.pk wrote: the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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 ___ 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] MPLS EXP bit marking question
One possibility would be to manually set the MPLS exp bit on your RSVP tunnel under edit protocols mpls label-switched-path. This overrides the CoS setting for rewrite (but not the scheduler config). If you are using LDP, you use the set protocols mpls interface name label-map label-val command. Note that this is a crude method and not exactly what you are probably looking for. C On Jun 8, 2009, at 8:26 AM, Lynch, Tomas wrote: Why would you want to do that? Labels are used only inside your backbone where you have the same QoS policy in all the routers. It's going to be a burden to configure QoS policies on interfaces because you will have to think is this router doing the PHP or not? -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Li Zhu Sent: Sunday, June 07, 2009 7:46 PM To: mas...@nexlinx.net.pk Cc: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] MPLS EXP bit marking question Masood, Nugroho Thank you for the reply. I agree with both of you that rewrite takes effect on both inner and outer mpls label. My next question is: what if I want to mark inner and outer MPLS label differently? Say I want mark the inner exp with 5 and outer exp with 6? Is it possible to achieve this? Thanks, Li On Sun, Jun 7, 2009 at 4:10 PM, mas...@nexlinx.net.pk wrote: the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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 ___ 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] MPLS EXP bit marking question
With the current hardware/software arch, I'm afraid you can't do that (I'm not sure though). Regards, Masood -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Li Zhu Sent: Sunday, June 07, 2009 11:46 PM To: mas...@nexlinx.net.pk Cc: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] MPLS EXP bit marking question Masood, Nugroho Thank you for the reply. I agree with both of you that rewrite takes effect on both inner and outer mpls label. My next question is: what if I want to mark inner and outer MPLS label differently? Say I want mark the inner exp with 5 and outer exp with 6? Is it possible to achieve this? Thanks, Li On Sun, Jun 7, 2009 at 4:10 PM, mas...@nexlinx.net.pk wrote: the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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 ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] MPLS EXP bit marking question
Why would you want to do that? Labels are used only inside your backbone where you have the same QoS policy in all the routers. It's going to be a burden to configure QoS policies on interfaces because you will have to think is this router doing the PHP or not? -Original Message- From: juniper-nsp-boun...@puck.nether.net [mailto:juniper-nsp-boun...@puck.nether.net] On Behalf Of Li Zhu Sent: Sunday, June 07, 2009 7:46 PM To: mas...@nexlinx.net.pk Cc: juniper-nsp@puck.nether.net Subject: Re: [j-nsp] MPLS EXP bit marking question Masood, Nugroho Thank you for the reply. I agree with both of you that rewrite takes effect on both inner and outer mpls label. My next question is: what if I want to mark inner and outer MPLS label differently? Say I want mark the inner exp with 5 and outer exp with 6? Is it possible to achieve this? Thanks, Li On Sun, Jun 7, 2009 at 4:10 PM, mas...@nexlinx.net.pk wrote: the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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 ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
[j-nsp] MPLS EXP bit marking question
All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ juniper-nsp mailing list juniper-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/juniper-nsp
Re: [j-nsp] MPLS EXP bit marking question
the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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] MPLS EXP bit marking question
Hi Li Zhu, It should be rewrite both inner and outer mpls label. If it is only rewrite into the outer label, then you will get a problem in PHP router. My 2c. Resend and CC into the mailist. On Mon, Jun 8, 2009 at 1:26 AM, Li Zhu l...@njit.edu wrote: All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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] MPLS EXP bit marking question
Masood, Nugroho Thank you for the reply. I agree with both of you that rewrite takes effect on both inner and outer mpls label. My next question is: what if I want to mark inner and outer MPLS label differently? Say I want mark the inner exp with 5 and outer exp with 6? Is it possible to achieve this? Thanks, Li On Sun, Jun 7, 2009 at 4:10 PM, mas...@nexlinx.net.pk wrote: the rewrite-rule will take effect on both tags and all the labels in label stack. Regards, Masood All, There is a network like CE --- PE --- P. The PE is M320. Traffic is from CE to P. The traffic out of CE is native IP, after it reaches and gets out PE (then to P), it is double-tagged with MPLS lable. There is a exp rewrite-rule applied on PE link to P router. My questions is will the rewrite-rule take effect on both tags or only the outer tag? Thanks, Li ___ 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
