Switching

We have a network management station on the 10.9.8.x/24 segment. This segment lives via HSRP on two 6500 switches. Whenever an end host attempts to connect to the station, they fail. Looking at the ICMP response time, we receive a constant 29-32ms re...

Hi,I found suspect log as below on router 3945, i'm not sure this logs should be ignored or seriously.%SYS-3-NULLIDB: Null IDB in ipsendnet -Process= "IP Input", ipl= 0, pid= 126 -Traceback= 0x59430E4z 0x5943828z 0x5C78CA0z 0x5C79084z 0x5C7ABB0z 0x59...

Hi,I've a customer with a several Cisco 3750-X switches, they are not in a stack. He has IP Base which apparently does not support IGMP Snooping (IP Services is needed)Can he upgrade one switch to IP Services, then use IGMP Snooping and connect the s...

Hello,I have a traceroute that goes through an SVI that seems to (9 times out of 10) provide request time outs. No packet loss is seen for pings to the end device, but the traceroute shows losses...traceroute 10.4.173.6:1     <1ms     <1ms     <1ms  ...

Hello Experts,I need your help regarding loop prevent when occure.I have facing the problem in any cisco switch like 3550 , or 2950.i have configured on interface in cisco 3550 as bellow.e.gfastethernet0/3description *** connect with IPDSLAM ***switc...

Hi,I kind of remember that there was a feature in cisco that allow you to use the network address of a subnet as the first usable ip address but i can remember how this is done.my question is if this is possible?tkx

Hi all,I'm configuring some 2960 and 3560 to sync to an NTP server.I've succesfully managed to sync the switches to the NTP server but I would like the switches to use some specific ports to use for connecting to the server.Now, according to the IOS ...

Hi AllI'm really tight for time on this as I have to supply a BOM to a client within the hour . Do you know if I can create a 3750 switch stack with 2 x 3750-S or E 10/100/1000's and 2 x 3750-S or E 10GB switches, where the 10gb switches sit at the t...

Configuring SSH access is a pretty basic thing, so I'm guessing there is probably a problem with the software I'm running.  Router is a Cisco 1841.Show version:NKYLEXRTR02#show verCisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12....

According to Cisco, the c7200-VSA card should be supported from 12.4(15)T Advance security feature set.I have lots of routers c7206 VXR NPE-G2 with 12.4(11)T2 & 12.4(20)T c7200p-advipservicesk9-mz working fine with the c7200-VSA, recognising the card...

On a 3750 switch, IOS 12.2(25)SEE2 (also 12.2(53)SE1, to which we're slowly moving), IP Services feature set.  Routed Layer 3 access.We're looking at implementing IGMP v3 in our standard configuration.  The documentation says that IGMP v3 join/leave ...

Do you happen to have or direct me to a config of OSPF and loopback interface on  layer3 switch (WS-C3560G-24TS) using VLAN. I know how to do on a router with Serial and ethernet interface, but not on a switch where i have to use the Vlan interface t...

Getting the NAT: % Invalid Key lengths for tree insertion message on (5) 2800 routers in different locations running IOS 124.  It is not impacting production. Checked cisco.com and did not come up with anything. Does anyone have any feedback/info reg...