Junos OS

Just a quick Sanity check question please:

si interface for l2tp:

show chassis hardware:

FPC 1            REV 08   750-063183   CAJA1580          MPC2E NG HQoS

    CPU            REV 13   711-045719   CAHM5690          RMPC PMB

    MIC 0          REV 31   750-028387   CAHL3541          3D 4x 10GE  XFP

              PIC 1                 BUILTIN      BUILTIN           2x 10GE  XFP

                    Xcvr 0     REV 01   740-014279   F174JU02815       XFP-10G-LR

If I am using the above interface for the si - am I right in saying the command for the inline services will be:

set chassis fpc 1 pic 1 tunnel-services bandwidth 10g
set chassis fpc 1 pic 1 inline-services bandwidth 10g
set chassis fpc 1 pic 1 max-queues-per-interface 8
set chassis fpc 1 flexible-queuing-mode

And the si interface is : si-1/1/0

Does the FPC require a reboot for the change?

Thanks

Hi,

set chassis fpc 1 flexible-queuing-mode -  on commit, this will require a FPC reboot but, why use this knob when your FPC is HQoS?

and set chassis fpc 1 pic 1 inline-services bandwidth 10g / set chassis fpc 1 pic 1 inline-services bandwidth 10g is enough for SI and interface is si-1/1/0. Can verify through show interface terse | match si-1/1/0

Thanks Karan for the sanity check.... Just wanted to confirm... 🙂

The reason for the other setting, I can't remember, but without, something didn't work.....  🙂

To add more info, flexible-queueing-mode is for non-HQoS MPC(s). In terms of subscriber(pppoe/l2tp/dhcp) use case, this knob basically helps to scale subscribers on policy/filters attached to them.

 https://www.juniper.net/documentation/en_US/junos/topics/concept/flexible-queueing-mode-overview.html

For HQoS MPC, like in your case, its not required.

Ah, probably for either of the following:

IPv6 MSS in the dynamic profile - or - Dynamic CoS settings

I haven't tested ipv6 mss, but for dynamic QoS or say when having multiple service attached per subscriber interface - it certainly helps in those cases when they are large in scale.

Hi Karan,

Yes. I had to upgrade for the Dynamic MSS settings, but it seems to work well. I had numerous problems with MSS on IPv6 before I applied this and now it seems okay.

Yes, it will be for the Dynamic CoS then..... I don't think it worked at all when we tested from a ppp subscriber on VoiP and then added the command and, bingo, it started queuing correctly and working as per documentation.

Thanks for the Help Karan...