Switching

I am implementing a VLAN per subnet plan, that at the moment is a flat network with secondary addresses on the 4503 switch:workstations 10.10.10.0servers 10.10.11.0printers 10.10.12.0I have a customer that has his router uplinked to my switc...

I understand that the CISCO's recommendation for ARP timeout value is to bring it down to the default CAM timeout of 300 seconds. This is done on the router module under each VLAN interface. However, on the 6513 switch side there is a global defaul...

is the mac table distributed in a layer 2 environment.is the arp table populated on switch only with the directly connected interfaces and is not replicated across other switches in the layer2?

OK. Im must be missing something real simple. I have a 2811 with 16port ESM. I monitored session 1 destination and source. My destination port see the data because my Show Ip interface sees packets in the output increasing. My laptop with Observ...

Hi there,I have a 4510R Device. Also some WS-C3750 Edge Switches connected to them. So if I connect a C3750 Switch to the 4510R Switch an another C3750R Switch to the 4510R Switch and connect both C3750 Switches together I have a loop. I have configu...

hi guys, i have a very basic scenario of BGP load balancing router A serial 0 to router B Serial 0router A serial 1 to router B serial 1Now i have configured loopback interfaces on both routers to be used for update-source command, i m not going into...

I've noticed that IOS version 12.2(35) has been poping on and off the early release list for the 3750. Does anyone know what the major differences between 12.2(25)SEB4 and 12.2(35)SE2?? Why would I choose one over the other?

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...