[j-nsp] M10i Version 7.0 R1.5 Per-packet Load Balancing

Thomas, Steven SThomas at birch.com
Mon Jun 13 16:21:40 EDT 2005


I have been through the documentation and the archives of this mailing
list and I'm at wit's end.  I believe I've set this up so it should work
but it doesn't seem to EXCEPT when I ping with the route-record option
on.  Then it works perfectly.  Other traffic, such as plain pings, ftp
and telnet always take the same route.  

This is the Junos config:

interfaces {
    fe-0/0/0 {
        unit 0 {
            family inet {
                address 10.10.152.253/24;
            }
        }
    }
    fe-0/0/1 {
        unit 0 {
            family inet {
                address 10.10.153.253/24;
            }
        }
    }
    at-0/2/0 {
        mtu 9192;
        clocking internal;
        atm-options {
            vpi 15;
        }
         unit 15102 {
            point-to-point;
            vci 15.102;   
            family inet {
                address 172.16.1.5/30;
            }
        }
    }
routing-options {
    static {
        route 192.168.168.0/24 {
            next-hop [ 10.10.153.1 172.16.1.6 ];
            metric 1;
            preference 150;
        }
    }
    forwarding-table {
        export load-balance;
    }
}
policy-options {
    policy-statement load-balance {
        from {
            route-filter 192.168.168.0/24 exact;
        }
        then {
            load-balance per-packet;
        }
    }
}

FE-0/0/0,10.10.152.0/24 is connected to a Linux box which is my traffic
source.  Fe-0/0/1,10.10.153.0/24 connects to virtual router A on an ERX
and at-0/2/0.15102 connects to virtual router B on the same ERX.
192.168.168.0/24 is an ethernet containing two Sun boxes which are my
traffic destinations and resides on virtual router B. Virtual router A
and B are directly connected with another ethernet.

This is the output of show route 192.168.168.0/24 extensive:

192.168.168.0/24 (1 entry, 1 announced)
TSI:
KRT in-kernel 192.168.168.0/24 -> {10.10.153.1, 172.16.1.6}
        *Static Preference: 150
                Next-hop reference count: 2
                Next hop: 10.10.153.1 via fe-0/0/1.0
                Next hop: 172.16.1.6 via at-0/2/0.15102, selected
                State: <Active Int Ext>
                Age: 4:33:55    Metric: 1       Tag: 0
                Task: RT
                Announcement bits (1): 0-KRT
                AS path: I

{master}

Is there something wrong with my config or is there a bug in this
version or what?  Any help would be appreciated.

Steve Thomas



More information about the juniper-nsp mailing list