Other Network Architecture Subjects

we had an a issue last night where a server started sending a broadcast storm and caused latency in the network. (this was an email migrantion and we expected that type of broadcast) but problem started when Cisco4507 (where server is connected) star...

I am proposing for a customer to buy a Cisco 1841 with Advanced IOS with 2 WIC cards, one for SDSL main pipe and a second WIC card for ADSL backup. I would like them to load balance in normal use and switch over to either if one fails. Is this poss...

Hi,I have two 6509's at the core of my network (MSFC's and Supervisor module's)After an unexpected power cut the second core failed to boot up, I gave the unit another power cycle and the unit booted up. The router module booted ok.However, when conn...

I am unable to configure encapsulation on the sub-interfaces that I have created on this router.I have switches with vlans in them and cannot route.Any ideas?

Nov 16 02:55:05: %C4K_L2MAN-6-INVALIDSOURCEADDRESSPACKET: (Suppressed 674 times)Packet received with invalid source MAC address (00:00:00:00:00:00) on port Gi7/3 in vlan 20 I keep receiving this log message on a core switch which I have just upgrad...

HiI've been upgrading two switches in my lab and have come across this error. It came up when I downloaded Cisco Network Assistant. The error hasn't come up on my other switch, at the moment its just plugged into a standard socket at home. Any he...

Hi All,We are trying to configuring mac ACLs on our Cisco 6500 with Sup7203B and PFC3B with IOS version 12.2(18)SXD6. Below is the configuration that we used.mac access-list extended test deny any anyinterface g8/2 mac access-group test in172.16.0....

I have a 2610 router that in connected via frame relay and when doing a sh int s0/0, I get DCD up DSR up DTR up RTS up CTS down. The circuit is staying up but at times is quite slow. The serial cable has been changed from the WIC to the external CSU/...

Good morning, how do I change the way the traffic is counted in an interface? I am thinking to the line from the show interfaces: 5 minute input rate 4000 bits/sec, 5 packets/sec How do I modify the 5 minutes to 1 minute for example?

Hi!Im planning to upgrade the IOs of our Cisco 7206 router. Just would like to clarify if what feature set does C7200-IS-M is? Actual output from "sh ver: (C7200-IS-M) 12.0(6)W5(14).Thanks in advance!udimpas

When applying the following accesslist to port 22 on my 2950 I get the following message:access-list 101 permit tcp host 192.168.31.250 any eq www access-list 101 permit tcp host 192.168.31.250 any eq 443 access-list 101 permit tcp host 192.168.31.25...

Hi,I need advice urgently.Q1) Is it possible to configure 2 OSPF process, one for primary ip address and one for secondary ip address?Q2) What about both the 2 OSPF processes for same ip address (secondary)?Q3) I understand that OSPF does not work fo...

I have a PC in a lobby open to public that I wish to allow access to the internet only, but I want to be able to remote control the PC from another office if necessary. I want to allow all other PCs at this location unrestricted access to the network...