Switching

I am having one cisco 3662 router. while i give sh ip arp command in the router it shows same MAC address for different IPs. Is there any problem with the network?please help me out......

How can I assign a single switchport (ie on a Catalyst series switch) on multiple VLAN's. The purpose is to share resources, like servers or printers.

Greetings,I have a Catalyst 3550 with 5 vlans configured. They appear ok........"Show VLAN" result is attachment 1However, although the vlans appear in "show vlan", they do not appear in "show IP route".Show IP Route result is attachment 3I attempte...

May I know is there any ways to review the logon activities to cisco switches and routers? Is there any access logs we can get it from routers and switches?

Hi, could someone please advise on the debug command that can be used to detect mad-address moves from one port to the other on cisco 4948 switches. I don't have the debug ethernet-controller command in the version of IOS I am running however I tried...

Hello,I've read that a Cat3750 can support 128 spanning-tree instances for 128 different vlans.I have only about 10 vlans but the 'show spanning tree summary' gives a total of 154 STP active ports. Is that a problem ? I've found limits for this num...

I have a pair of 6509-E that form the core switching for a large network. These 6509 switches are connected together via and etherchannel of 4 ports. These ports are spread across different blades on the switches, Is this a good idea for etherchannel...

In XR 12000 (12410) and CRS-1, what are the acceptable temperatures for the two devices (both the inlet and the exhaust)? When should we conside the temp is high?

All,I have a situation where I have a vrf lite tunnel, using gre, to connect two networks together. The reason for this is that the new network needs a default route, outside our network.At the end of the vrf tunnel, at the remote end, we have patche...

Hi,I want to optimize the HSRP timers on my catalyst 4510.I have 20 vlans interfaces. What is the minimum value I can use ?With 100 msec (hello) and 300 msec (holdtime), the CPU is very high (55%).But with the default timers, it is unacceptable for s...

Hi.I have a POP with thousand more of catalyst switches with a Cisco 7609 as root deivce. I use default VLAN 1 for management. Inside the SVI interface vlan 1 I configured several /24s The question is weather Cisco recommends to move those /24s (e.g....

I learned that there are 2 ways for dhcp bindings configuration: a)client-identifier ; b)hardware-addressAnd also I noticed that "show ip dhcp bindings" shows me the MAC addresses in 2 ways: 1) 001c.bfa0.3aae and 2) 0100.1cbf.a03a.aeI also noticed th...

HiI configuted a 3 vlans, vlan 10,vlan 20 and 30the vlan 10 have the dhcp server 192.168.10.4, and every vlan had ip helper-address 192.168.10.4, everythings wotks fine,but when a aplied VACL to restrics some comunications between vlans, the computer...

My customer is currently using Hybrid IOS on their SUP2 and they are thinking of upgrading to Native IOS c6sup22-pk2o3sv-mz.121-27b.E4.bin.What my customer wants to know is that their existing data network currently has a lot of Cisco 3548 which are ...