[j-nsp] Interface without 'family ethernet-switching' possible on EX series?

James Jun james at towardex.com
Fri Jun 27 16:12:46 EDT 2008


Hey ras, thanks for your reply :)

The show route commands look pretty normal to me (I've pasted output below),
the direct/local routes pertinent to the 10.10.255.192/30 subnet are there.
I was running JUNOS 9.0R2 earlier when I first posted this message, but
upgraded it just now to 9.1R1.8. Unfortunately the problem persists :-(

FWIW, on the Cisco side, I have it connected to a GLC-T SFP (for copper
gig-e).  Thinking that it may be a bad sfp or line card at Cisco side, I
configured a 2nd interface (ge-0/0/2.0 on the EX) headed out to a different,
second Cat6500 unit.  But it's exhibiting exact same problem on that 2nd
interface as well (routes installed, link is up/up, negotiated as 1000BaseT
but unable to ping across; getting sendto: Network is down message at EX
end). 

In the meantime, I'm going to go ahead and open a JTAC case and also try
setting it up as a layer-2 access port with an L3 vlan on top of it to see
if it does anything different..


Thanks,
james

--- JUNOS 9.1R1.8 built 2008-04-25 07:40:32 UTC
admin at ex3200> show route 10.10.255.193/32 extensive

admin at ex3200> show route 10.10.255.192/30 extensive

inet.0: 11 destinations, 11 routes (11 active, 0 holddown, 0 hidden)
10.10.255.192/30 (1 entry, 0 announced)
        *Direct Preference: 0
                Next hop type: Interface
                Next-hop reference count: 1
                Next hop: via ge-0/0/0.0, selected
                State: <Active Int>
                Local AS: 25623
                Age: 12:07
                Task: IF
                AS path: I

10.10.255.194/32 (1 entry, 0 announced)
        *Local  Preference: 0
                Next hop type: Local
                Next-hop reference count: 6
                Interface: ge-0/0/0.0
                State: <Active NoReadvrt Int>
                Local AS: 25623
                Age: 12:07
                Task: IF
                AS path: I

admin at ex3200> show arp | match 10.10.255.193
00:15:c7:22:1b:80 10.10.255.193  10.10.255.193            ge-0/0/0.0   none

admin at ex3200> ping 10.10.255.193
PING 10.10.255.193 (10.10.255.193): 56 data bytes
ping: sendto: Network is down
^C
--- 10.10.255.193 ping statistics ---
1 packets transmitted, 0 packets received, 100% packet loss

admin at ex3200> start shell
% netstat -ran -f inet | grep 10.10.255.19
10.10.255.192/30  intf     0                   rslv   516     1 ge-0/0/0.0
10.10.255.192/32  dest     0 10.10.255.192    recv   514     1 ge-0/0/0.0
10.10.255.193/32  dest     0 0:15:c7:22:1b:80  ucst   550     1 ge-0/0/0.0
10.10.255.194/32  intf     0 10.10.255.194    locl   515     2
10.10.255.194/32  dest     0 10.10.255.194    locl   515     2
10.10.255.195/32  dest     0 10.10.255.195    bcst   513     1 ge-0/0/0.0



> -----Original Message-----
> From: Richard A Steenbergen [mailto:ras at e-gerbil.net]
> Sent: Friday, June 27, 2008 4:37 PM
> To: James Jun
> Cc: juniper-nsp at puck.nether.net
> Subject: Re: [j-nsp] Interface without 'family ethernet-switching'
> possible on EX series?
> 
> On Fri, Jun 27, 2008 at 01:26:04PM -0400, James Jun wrote:
> > admin at ex3200> ping 10.10.255.193
> > PING 10.10.255.193 (10.10.255.193): 56 data bytes
> > ping: sendto: Network is down
> > ping: sendto: Network is down
> > ping: sendto: Network is down
> > ping: sendto: Network is down
> > ping: sendto: Network is down
> > ^C
> > --- 10.10.255.193 ping statistics ---
> > 5 packets transmitted, 0 packets received, 100% packet loss
> 
> show route 10.10.255.193 extensive and 192/30 extensive, make sure your
> local and direct routes are getting installed properly. I've seen some
> bugs related to this on EX. Also what code are you running? If 9.0R2, try
> 9.1R1 instead.
> 
> --
> Richard A Steenbergen <ras at e-gerbil.net>       http://www.e-gerbil.net/ras
> GPG Key ID: 0xF8B12CBC (7535 7F59 8204 ED1F CC1C 53AF 4C41 5ECA F8B1 2CBC)



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