Hi Techs,   I have a Cisco PE Cisco7200 and Huawei CPE with double tagging on sub interface at PE. Huawei CPE has subinterfaces with dot1q termination vlan id (each subinterface has particular CE vlan id applied).   The problem is with BGP session unstable over this service. Even the SSH to CPE drops/hungs in between suspecting it to be with TCP layer.   Tried with possible tcp adjust mss on CPE but no luck. ISP has confirmed no problem with the lease line and supports Q-in-Q feature.   Is there anything that needs to be checked, verified at Cisco or Huawei CPE end ?   Regards, Santosh ... View more

Hi Guys,   We have a pair of Nexus7k's up and running since 200+ days. We used putty for console access and since last couple of days we are seeing issues in putty like delayed output, no typed inputs etc. When we tried with flow control as "none" the session was good.   The same putty settings are working with other IOS devices but for NX-OS we have to set flow control to none specifically. This was working previously without any tweaks in putty.   We even tried changing USB ports and with a different cable and laptops but no luck.   We have version 6.2(16) in both N7k's. Let me know if there is anything with this NX-OS.   Best regards, Santosh Pawar   ... View more

Hi Techs,   Could you please help with the SNMP V3 configuration on ISR4321 for Entuity NMS tool. The ISR is discoverable via SNMP V1 or V2c. I have below commands on the router and the device is getting certified but there are no interfaces or data present.   snmp-server group group1 v3 auth read V3Read write V3Write snmp-server user user1 group1 v3 auth md5 user1pass snmp-server view V3Read iso included snmp-server view V3Write iso included snmp-server host 1.1.1.1 version 3 auth user1 snmp-server enable traps   There are some posts asking to add SNMP local/remote Engine ID with port. Is it required ? Also the udp port required is usual 161/162 ?   Regards, Santosh   ... View more

Hi All,   We have a Cisco C3650-48 port in stacking and in L2 only mode (no ip routing) with default gateway set. There were static routes entered (not sure why) and may be by mistake. Since then we are seeing stale static routes with AD 0 in the show ip route output. Find below the snap -   Gateway of last resort is 10.0.1x.50 to network 0.0.0.0 S*    0.0.0.0/0 [0/0] via 10.0.13.50       4.0.0.0/32 is subnetted, 1 subnets S        4.4.4.4 [0/0] via 10.0.1y.x, Vlan1       8.0.0.0/32 is subnetted, 1 subnets S        8.8.8.8 [0/0] via 10.0.1y.x, Vlan1       10.0.0.0/8 is variably subnetted, 8 subnets, 2 masks S        10.0.x.10/32 [0/0] via 10.0.1y.x, Vlan1 S        10.0.x.23/32 [0/0] via 10.0.1y.x, Vlan1 S        10.0.x.102/32 [0/0] via 10.0.1y.x, Vlan1 C        10.0.1x.0/24 is directly connected, Vlan1 L        10.0.1x.150/32 is directly connected, Vlan1 S        10.0.24x.x0/32 [0/0] via 10.0.1y.x, Vlan1 S        10.x.0.y/32 [0/0] via 10.0.1y.x, Vlan1   When ip routing is enabled, the stale routes just vanish away. Anyone seen such abnormal behaviour ? As the switch is in stack, we wont be able to reload the entire stack due to production network. Also there are no bugs reported as such.   Let me know if any hints or workaround possible.   Regards, Santosh Pawar   ... View more

Hi Guys, We are trying to integrate new switches in CAM/CAS but unable to do so. The devices are getting added in the CAM and we could bounce the ports assigned to vlan profile. But the issue is with the port not moving to/via AUTH vlan when user turns off the PC connected on the port. The switch is located in the DC LAN where CAM/CAS is connected. There is no issue with the switches at the remote branches and working absolutely fine. The switches at DC LAN are  C3750x running 15.0. We have tried using series 12.2(58) but that didn't help. Let me know if there is anything thats is not as per NAC requirement or to be verified in the configurations or CAM/CAS  servers itself. Best regards, Santosh ... View more

Hi Guys,   I have been seeing BGP standalone/ distributed mode in show bgp ipv4 unicast sum command. Would like to know if there is any document which describes the concept or could someone please explain the same.   Thanks a lot!   Regards, Santosh ... View more

Hi Techies, I have a Cisco router which auto downloads routes from Cisco ACS via aaa (radius). The router serves as a ISDN HUB where sites dial in to access shared resources. ISDN is back up solution on all remote branches on MPLS. The ACS has a group created where users are defined with static routes for LAN and router loopbacks AD. Currently the HUB router is not dowloading some routes via aaa and I am trying to find the exact root cause. Let me know if anyootne knows how to troubleshoot this. Best regards, Santosh ... View more