[j-nsp] Experience with J series

[Pavel Lunin]

Hi 陈江,

You're right, this should be almost always done if you run several external
peers with fullview, but this code only switches the box into router
context. It doesn't make fwdd to free the memory. The router I used to show
the fwdd memory consumption is also given this piece of config.

I heard some talks Juniper is going to deploy different memory allocation
models based on the mode and even licenses (not sure whether they have much
sense), but by now router context does not give you any additional free
DRAM, fwdd still eats about 500 megs.

In new versions of JUNOS for J/SRX idpd daemon is also consuming quite a lot
of memory even if you do not need IDP. But there is no problem to turn it of
with [edit system processes] hierarchy.

So in some cases the best way will be just still use <= 9.3 packet mode.

--
Pavel

2009/9/26 陈江 <ilovebgp4 at gmail.com>

> if you running flow based JUNOS , you could try this knob to turn it into
> packet based mode:
>
> security {
>   forwarding-options {
>     family {
>             mpls {
>             mode packet-based;
>         }
>     }
>   }
> }
>