Switching

I haeard if I'm using NTP server and I configure NTP server to start sooner then I don't need to do anything with my router/swithces, is it correct. I have an option on my NTP server where it allows me to specify the start/end dates for dayligt savin...

Why does the Catalyst switches stop at 12.2 IOS? Is there any documentation explaining this and what the future plans are. My Security folks are all about keep up to date, and I can not explain why my gear does not support the "LATEST".Chuck

We have (2) Cisco 5509s with dual SUPIIIG. They are linked via GBIC modules in port 1/1 and port 2/1. The dual links are setup in trunk mode, full duplex, speed 1000. We have been getting a lot of FCS Errors and RCV-Errors on one of the GBICs. Ov...

I recently noticed the CEF switching process on a 6509 was running at about 3% whereas it used to be < 1%.Looking at the output of 'show ip cef events' there are constant adjacency updates for /32 addresses which are DHCP servers all hanging off a 35...

I have configured qos on a Cat3750 and my intention is to prioritize Voice(dscp=46) traffic on a specific interface(Fa1/0/44) . I have issued some "show mls qos ..." commands(are attached) . Can anyone explain me the output of the command "show mls q...

Hi Guys, Here again with these two questionsQ1.CSMA/CD network has slot time of 51.2?s.what would be the back-off delay time immediately after the fourth attempt?i got 4096 but this wasn't part of the option given in my practice questions.Q2.Wha...

Hello,I wanted to classify smtp traffic on one of the ingress port of a 3560 switch, but it seems that classification does not work.Here is the simple config related to qos.!mls qos !....!class-map match-all SMTPTraffic match access-group 100!poli...

Hi,I am just wondering why Cisco recommendations are to apply the filterations stated in RFCs 2827 & 1918 in the border and ISP routers while as the range called to be filtered in RFC 2827 is originally not routable elsewhere, and the addresses which...

I have a Cisco 877w router and wanted to transfer a file onto the flash from my pc.I ran 3CDaemon as the TFTP server.My PC 192.168.1.10 and router 192.168.1.1did the command "copy tftp://192.168.1.10/image.bin flash:" andwhen it started transfering i...

In my catalyst 4506 switch some of the users loose their connectivity to the gateway in their pc for a certain period.If the ip is renwed in pc or the port is reseted in the switch then the pc will regain the reachabilty to the gateway.The lan connec...

Hi,I am a newbie in this forum.. Can you please tell me whether I can specify a range of ports from the Public IP to the Internal servers. Normally the F5 does not allow you to add range of ports for a mapping..ThanksShyam

Last night I moved a small network over to three Express500 switches. I have two servers, and one user that intermittently shows Event Viewer messages of "duplicate IP address found" and gives the MAC address of itself with the exception of the firs...

Hi,I have a CE500 switch which i want to uplink with a Dlink unmanaged switch. The port which i have connected the Dlink unmanaged switch has ROLE as switch.I have connected two Desktops to the unmanaged switch which are able to communicate with eac...

I will be purchasing a new Catalyst 3650 and I have a question about properly connecting it to my existing 3550 using the GBIC Ports. The 3550 have the Standard GBIC connectors and tbe 3650 have the mini GBIC ports. Can I simply purchase an SC connec...