Yes i have a valid mac address entry. If i do a shut - no shut on 3600 interface connectivity with patton is restored. Στις 3 Ιουλ 2013 10:18 μ.μ., ο χρήστης "Pshem Kowalczyk" <[email protected]> έγραψε:
> Hi Antonis, > > When the loss of connectivity happens - do you still have a valid ARP > entry on the ME3600 for the Patton? > If so - what happens if you clear that ARP entry on ME3600 manually > and then try to ping the Patton? > > kind regards > Pshem > > > On 4 July 2013 04:56, Antonis Vosdoganis <[email protected]> wrote: > > There are 2 traces one from 3600 and one from 2960. The one you are > > refering is from 2960. With 2960 there is no problem. > > Στις 3 Ιουλ 2013 7:31 μ.μ., ο χρήστης "Aaron" <[email protected]> έγραψε: > > > >> 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/ > _______________________________________________ cisco-nsp mailing list [email protected] https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
