[c-nsp] CISCO ME3600X ARP ISSUE

[Antonis Vosdoganis]

Sorry if i didn't make it clear. There is ip connectivity when i boot up
the patton gateway. The problem appears 20 minutes after when patton sends
the arp request.

Also the traffic from patton is untagged that’s why encapsulation
untagged is applied under service instance.

Patton has ip address 46.245.137.3 255.255.255.248 and static route 0.0.0.0
0.0.0.0 46.245.137.1

I am not in the office to send you the 2960 configuration but i will
tomorrow.

I am attaching again the traces.


On Wed, Jul 3, 2013 at 6:15 PM, Aaron <aaron1 at gvtc.com> wrote:

> As Nick mentioned, given you are untagging on the patton side, since you
> should be since you are untagged on the me3600 service instance 333...
>
> Go to the " Patton SmartNode 4528 Voip Gateway Router" and check it's ip
> address, subnet mask and def gw .... make sure they are ...
>
> Ip address - ip address 46.245.137.2 or .3 or .4 or .5 or .6
> Mask - 255.255.255.248
> Def gw - 46.245.137.1
>
> Aaron
>
>
> -----Original Message-----
> From: cisco-nsp [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of
> Nick
> Hilliard
> Sent: Wednesday, July 03, 2013 9:46 AM
> To: Antonis Vosdoganis
> Cc: cisco-nsp at puck.nether.net
> Subject: Re: [c-nsp] CISCO ME3600X ARP ISSUE
>
> On 03/07/2013 13:30, Antonis Vosdoganis wrote:
> > I am facing a issue with our Metro Ethernet switch. I have directly
> > connected a Patton SmartNode 4528 Voip Gateway Router to the Cisco
> > Switch which is the Default Gateway (46.245.137.1). Patton GW every 20
> > minutes sends an ARP request asking for default gateways mac address.
> >
> > Cisco ME3600X is not responding to Patton ARP request so Patton is
> > losing ip connectivity since is thinking that Default Gateway is down.
>
> Hi Antonis,
>
> Your attachments didn't come through.  Can you post them on
> http://cloudshark.org/ so that we can take a look?
>
> > Routing Protocol is ISIS. I have made the some tests with a Catalyst
> > 2960G which is responding to Patton ARP request.
>
> ISIS has nothing to do with default gateways.
>
> You haven't provided enough configuration to determine what the problem is.
>  What vlan is the patton device connected to, and what are the port
> configuration settings on the Catalyst 2960G for the ports which connect to
> the ME3600 and the Patton device.
>
> If the patton device is on vlan 333 and the 2960G-ME3600X link is
> configured
> as a dot1q trunk on the 2960 side, then you need to use this on the ME3600X
> side:
>
> --
> interface GigabitEthernet0/23
> switchport trunk allowed vlan none
> switchport mode trunk
> service instance 333 ethernet
>  encapsulation dot1q 333
>  rewrite ingress tag pop 1 symmetric
>  bridge-domain 333
>
> interface Vlan333
> [blah]
> --
>
> Nick
>
> >
> >
> >
> > Switch Port configuration
> >
> > interface GigabitEthernet0/23
> >
> > switchport trunk allowed vlan none
> >
> > switchport mode trunk
> >
> > load-interval 30
> >
> > service instance 333 ethernet
> >
> > encapsulation untagged
> >
> > service-policy input CORPORATE_IN_10MB
> >
> > service-policy output CORPORATE_OUT_10MB
> >
> > bridge-domain 333
> >
> >
> >
> > interface Vlan333
> >
> > bandwidth 10000
> >
> > ip address 46.245.137.1 255.255.255.248
> >
> > load-interval 30
> >
> >
> >
> > #show ip protocols
> >
> > *** IP Routing is NSF aware ***
> >
> > Routing Protocol is "isis"
> >
> > Outgoing update filter list for all interfaces is not set
> >
> > Incoming update filter list for all interfaces is not set
> >
> > Redistributing: static, isis
> >
> > Address Summarization:
> >
> >    None
> >
> >   Maximum path: 4
> >
> > Passive Interface(s):
> >
> >   Vlan333
> >
> >   Loopback0
> >
> >
> >
> > Cisco ME3600X is running IOS me360x-universalk9-mz.153-1.S1.bin
> >
> > I have attached 2 wireshark traces one from 3600 and one from 2960.
> >
> >
> >
> > Regards
> >
> >
> >
> > Antonis.
> > _______________________________________________
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> >
>
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