you mentioned... > Cisco ME3600X is not responding to Patton ARP request so Patton is > losing ip connectivity since is thinking that Default Gateway is down.
...but i see in this wireshark sniff "ARP_WS-C2960G-8TC-L.pcapng" frame number 14 that the cisco (i assume it's the me3600) does in fact arp reply to the patton... 00 21 d7 cb 69 c1 - sender mac - cisco says i am 46.245.137.1 00 a0 ba 05 ad c3 - target mac - patton - 46.245.137.3 to prove that the cisco me3600 is sending this maybe you could... sh interface | in bia look for "0021.d7cb.69c1" Aaron -----Original Message----- From: Nick Hilliard [mailto:[email protected]] Sent: Wednesday, July 03, 2013 11:18 AM To: Antonis Vosdoganis Cc: Aaron; cisco-nsp Subject: Re: [c-nsp] CISCO ME3600X ARP ISSUE Can't really tell much from the pcap files: http://cloudshark.org/captures/ac6ed1c8470a http://cloudshark.org/captures/fda45ed488b0 The timestamps don't overlap. If it works and then stops working, that could be an arp/L2 cam timeout. Make sure that the arp timer on the switch is configured to be lower than the cam timer on your 2960. me3600: show interfaces vlan 333 | i ARP c2960: show mac address-table aging-time Nick On 03/07/2013 17:05, Antonis Vosdoganis wrote: > 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 <[email protected] > <mailto:[email protected]>> 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:[email protected] > <mailto:[email protected]>] On Behalf Of Nick > Hilliard > Sent: Wednesday, July 03, 2013 9:46 AM > To: Antonis Vosdoganis > Cc: [email protected] <mailto:[email protected]> > 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. > > _______________________________________________ > > cisco-nsp mailing list [email protected] > <mailto:[email protected]> > > https://puck.nether.net/mailman/listinfo/cisco-nsp > > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > > > _______________________________________________ > cisco-nsp mailing list [email protected] > <mailto:[email protected]> > https://puck.nether.net/mailman/listinfo/cisco-nsp > archive at http://puck.nether.net/pipermail/cisco-nsp/ > > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
