Switching

Recently we have run into problems with port security when a PC is replaced. I have cleared the mac address table in the interface, cleared the sticky address, shut, no shut, removed, and readded port security. The PC will grab an IP address when p...

Hi AllSo, I need to measure rtt levels between two devices and trap when it is too high. Sounds like a job for IP SLA right. I am trying to do this on a 7200 and a 6500. When the threshold goes above 30ms I want to send an SNMP trap with custom tex...

If write a Extended or Standard ACL on a router , mentioning 5 lines including deny or permit ip traffic, at the end of ACL if i forget to write permit ip any any . whether it will assign deny ip any any as default command at the end of ACL or perm...

Hi all.Strange issue with PXE boot.Problem:3750 Series running (C3750-IPSERVICESK9-M), Version 12.2(50)SE3.VLAN INFO:VLAN1 = High school dataVLAN208 = Middle school dataVLAN209 = Elem school dataIP helpers for both PXE server and DHCP server in all v...

Hi Friends,I have two 6509 Switches at the Core working redundant to each other. My servers would be directly connecting to one of the module in the Core. I have some application servers which are using Microsoft NLB. As of now they are connected to ...

I just purchased a 520 to add to my basic small business network mainly for the PoE. I have a router at 192.186.1.1 then I want my switch. I'm trying to setup the switch following the instructions included. I get to the Static IP...what should I p...

Dear Netpros,I am attaching a Rough Topology Dia. There are around 30 Vlans on Netwrok.Netwrok should be fully Redundant and managable.Can you suggest me the configuration guide ?Should we use Vlan creation and intervlan routing on Core layer or on D...

We have a problem with Nortel IP Handsets connected to a Cisco 2960 switch. When the handset is connected to the switch it comes up with a "Server Unreachable" message. Traces taken on the network show that the handset sends it's packets tagged wit...

In SSO reduandancy configuration can all ports ( 2 onboard ports per Sup ) be used in an Etherchannel ?I am not sure when other SUP is in Hot Standby , the gigabit fiber ports on that Sup can be used ?

Hi, My question is based on the diagram attached. I have a dual 6500 series core switches, CR1 and CR2 whereby I priotize voice traffic upto 30MB as it leaves for the mpls cloud. Now the CRs are connected to 3650 switches. Would 'auto qos voip trust...

Hi All,My site has a network layout like the attachment. I have already set the MTU to 9000 on both node A and node D. The switch interface connected to node A and node D are also jumbo enabled now. But my jumbo frame still cannot function now. Is it...

Hi everybody,Would anybody happen to know what needs to be done to allow a IPSec VPN session on the ASA to be established from an inside network.I have it working on a Router but couldn't figure out just yet why it doesn't work on the ASA.I apologize...

Hi All.I was checking my ports on errors on a subject switch and all was OK. but one ios command -"show controllers ethernet-controller <my interface>" has shown me that some ports have"Too large frames" in transmit section and "Valid Frames, too Lar...

Hi friends,I have a cisco 6509 with CatOS. Can you please advice the command line to view the crashinfo file. I tried to get thru tftp; but it's not readable format. Please advice.Thanks!!