Switching

Can any one explain me clearly about IP Subnet Zero? Thanks in advance!!!

I'm troubleshooting a 3750 switch stack problem where computers are showing input and CRC errors.  I'd like to be able to execute a "show interface" command that will show me only the line showing the switch port and the line showing the input errors...

Hi,Can someone please help. I have a 3845-Mb that has a username and password already on it. This needs to be wiped as its a sold unit. However i cannot break into teh IOS in Hyperterminal using Ctrl-Break either as it boots or after teh IOS image ha...

Good Morning,I hope somebody can shed some light on this issue.We had a 6500 switch reload (runs on 12.2 ADVIPSERVICES_WAN-M) and our engineer had noted that "OUTPUT FAIL" indicator was red on the back of the Power Supply.I was wondering if someone c...

Hi Friends,Can  somebody please explain what are below highlighted errors.GigabitEthernet0/13 is up, line protocol is up (connected)  Hardware is Gigabit Ethernet, address is 503d.e508.4b0d (bia 503d.e508.4b0d)  MTU 1500 bytes, BW 100000 Kbit, DLY 10...

Hi I have 2 cisco 6500 in a VSS configuration , All of my Lan access switches are Stack switches and every Stack is connected to the VSSin a Port-channel so basically this is a loop free environment with no blocked ports .As a best practice I left ST...

HiI'm hoping someone can clarify the selection criteria for which ASBR to use for E2 routes in OSPF.I'm injecting BGP routes in to a network at two points and redistributing them in to OSPF as E2s. I've decided to let OSPF determine which route to in...

Hi Experts,We had a core switch(4503) in our environment and recently we tried to enable syslog in the switch. But the syslog server doesnt receives all the configured level messages from the switch. Following is the only message getting in syslog se...

Hi,Switch#show interface status.Gix/x            err-disabled 500          full   auto 10/100/1000BasSwitch#sh interfaces gigabitEthernet x/xGigabitEthernet x/x is down, line protocol is down (err-disabled)I tried to re –enabled those ports , but no ...

I have a Cisco 1841 handling a remote site with about 50 concurrent users.  Recently, I turned on NAT on the router to provide Internet access to these users via a new ISP.   Unfortunately, now the CPU utilization has moved from less than 5% most of ...

I have an odd question. What all does one check to verify the performance of a switch or watch to see if it is time to upgrade? Lets say I have a WS-C3560G-24PS service as a distribution switch with six (6) WS-C2950T-24 connected to it. In looking at...

Dear Experts!!!I need 10gigbit uplink for this switch. What are the other devices that i need order along with this device.And what is the diff between  X2-10GB-LR= and CVR-X2-SFP.if i take CVR-X2-SFP, in future how can i upgrade from one gig to 10 g...

Hi,I have a user who is a work at home.  She has an 871 Cisco Router with is connected to an ISP modem.  Lately she has been getting connectivity issues.  And a tech from the ISP troubleshooted it and said that the Cisco Router was not pulling an IP ...

Good afternoon all,We puchased two new 4948 with two 10GE uplink ports and upgraded the devices to run IOS 15.  My 6506 is running Sup 720 with s77233-adventerprisek0_wan-mz.122-33.SXI9.  Currently we have 4948's connected to the same 6506's with no ...