but this is an MCS (Mission Critical Site) solution, i.e. we ordered the same circuit from the same carrier to implement the solution in aother location for resilliency , and it works fine
P.S. : at some point i had 8% success rate of 100 pings , but after that all dead i told the carrier i want to have the packets transferred with dot1q encapsulation, and they replied that they are providing a transparent environment, reagardless the two ends are access or trunk On Tue, Feb 3, 2009 at 10:06 AM, Tom Storey <[email protected]> wrote: > Are you sure that the two ports that face your metro ethernet provider are > actually trunks? > > In my experience, carriers will only present access ports to "end users", > where end users are yourself and your customer. > > This means that you do not setup trunking or sub-interfaces on any of your > and your customers equipment, you configure access ports aswell. > > It means that you can have a lot of 1:1 patching from your ethernet > provider to your aggregation switch, but it helps your carrier protect > their network from certain types of misconfiguration - i.e. they cant > accidentaly trunk someone elses VLAN down to you. > > > Hello, > > > > this is a real life problem still occuring, and have no idea what may be > > causing it .. > > > > we are providing an internet direct service to our customer vial MEL > > (Metro > > Ethernet Link) > > > > CE (CS-7206 VXR) fe2/0.36 ------------------Etherlink(local > > carrier)---------------- WS-3759G-24TS--PE(CS-7000) > > > > the solution is providied using a carrier to link the customer CE to an > > aggregated switch, using Metro Ethernet > > configuring vlan 36 and using dot1q encapsulation > > then from the aggregating switch to the PE router using also > encapsulation > > dot1q for vlan36 > > > > all interfaces are up-up , and still ping fails !! > > > > i tried everything, resetting ports, switches, reconfigure interfaces > > ..etc. > > still no joy > > > > any idea what could be causing the problem ? > > > > ======================================================================== > > CE: > > ----- > > interface FastEthernet2/0.36 > > bandwidth 61440 > > encapsulation dot1Q 36 > > ip address 57.78.2.6 255.255.255.252 > > ======================================================================== > > Agg. switch: > > ------------------ > > interface GigabitEthernet1/0/9 > > switchport trunk encapsulation dot1q > > switchport trunk native vlan 3109 > > switchport trunk allowed vlan 36,3109 > > switchport mode trunk > > switchport nonegotiate > > duplex full > > speed 100 > > mls qos trust cos > > spanning-tree bpdufilter enable > > ======================================================================== > > PE: > > ------ > > interface FastEthernet5/1/1.36 > > bandwidth 61440 > > encapsulation dot1Q 36 > > ip address 57.78.2.5 255.255.255.252 > > no ip redirects > > no ip proxy-arp > > no ip route-cache > > no cdp enable > > ======================================================================== > > bmil305#sh int FastEthernet5/1/1.36 > > FastEthernet5/1/1.36 is up, line protocol is up <<<<<< > > Hardware is cyBus FastEthernet Interface, address is 0003.fe91.b8a9 (bia > > 0003.fe91.b8a9) > > Internet address is 57.78.2.5/30 > > MTU 1500 bytes, BW 61440 Kbit, DLY 100 usec, > > reliability 255/255, txload 1/255, rxload 1/255 > > Encapsulation 802.1Q Virtual LAN, Vlan ID 36. > > ARP type: ARPA, ARP Timeout 04:00:00 > > ======================================================================== > > pmil2534#sh int Fa2/0.36 > > FastEthernet2/0.36 is up, line protocol is up <<<<<< > > Hardware is i82543 (Livengood), address is 0022.be8b.1038 (bia > > 0022.be8b.1038) > > Description: --- To bmil305 - FE5/1/1.5 > > Internet address is 57.78.2.6/30 > > MTU 1500 bytes, BW 61440 Kbit, DLY 100 usec, > > reliability 255/255, txload 1/255, rxload 1/255 > > Encapsulation 802.1Q Virtual LAN, Vlan ID 36. > > ======================================================================== > > ping pe to CE fails: > > ---------------------------- > > bmil305#ping 57.78.2.6 <<<<<<, > > Type escape sequence to abort. > > Sending 5, 100-byte ICMP Echos to 57.78.2.6, timeout is 2 seconds: > > ..... > > Success rate is 0 percent (0/5) > > ======================================================================== > > PE to internet (google) successfully: > > ------------------------------------------------------ > > bmil305#ping 216.239.59.147 source fast 5/1/1.36 repeat 100 size 500 > > Type escape sequence to abort. > > Sending 100, 500-byte ICMP Echos to 216.239.59.147, timeout is 2 seconds: > > Packet sent with a source address of 57.78.2.5 > > !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > !!!!!!!!!!!!!!!!!!!!!!!!!!!!!! > > Success rate is 100 percent (100/100), round-trip min/avg/max = 36/40/112 > > ms > > ======================================================================== > > _______________________________________________ > > 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/
