Other Network Architecture Subjects

I have a Cisco 1921 acting as a DHCP server with clients connected via 2960 Catalyst switches. The issue is some machines are receiving IPs via DHCP while others are not. For machines not receiving IPs, the debug ip dhcp server packet is not showing ...

Dear Support,I would like to know whether Cisco ISE model 3395 supports delta CRL (certificate revocation list)  and how do we configure it to retrieve  the information from a CA server's initial response.Many thanks.                 Sankung  

I have a known good fan module that does not work when plugged into a 15454 Cerent chassis.  Any ideas on where to check first?  Pin-out of the connector on the back of the shelf possibly?

Dear community, I have a strange error, for backup we have dmvpn-routers 3G. To connect to the site with a 3G router C819HG+7-K9 no problem. XXXVR01_161#show dmvpnLegend: Attrb --> S - Static, D - Dynamic, I - Incomplete N - NATed, L - Local, X - No...

Dear All, I have configured IPSec over GRE using OSPF protocol in cisco Router 3845-HSec-K9 .My client is having more than in more than 500 branches with Dual ISP connectivity. But we are facing huge cpu utilization in 3845-HSec-K9 and getting huge p...

I cannot access to my switch and the switch has a message as below : *Mar 14 03:21:10.598: %AAA-3-BADSERVERTYPEERROR: Cannot process authentication server type *invalid_group_handle*% Authentication failed% Authentication failed% Authentication fail...

I am new to networking and wanted to clarify a doubt regarding network cables: When we study about network cabling we study it under two different categories.One is the Ethernet Cable types as Twisted Pair Cable,Coaxial Cable and Fiber Cable.the oth...

Can anyone help me with asa 5516 with fire power services. I am able to see firepower in asdm but am not much sure how to proceed next with complete deployment. Can anyone guide me with step by step procedure to deploy. I am giving you a little brie...

Hello to all We are looking to set up 2 call centers, each in different cities, both will use ip voice  one call center will have 250 phone operators, and the other one will have 150 phone operators Which routers and switches would someone recommend...

Hello, Recently ,I've been studying about qos  for a project our client  have multiple ISP connection  in my case : LAN--------ROUTER1-------400M----------------------WAN--------------100M--------------ROUTER2-----------LAN AS you can see  we hav...

I face a problem with cisco router while practicing. In line console 0 I set "login local" and then delete my username and password. Then I exit from router and it prompts me username and password. But I deleted the username and password and I think ...

I've made a small tool call vRIN (virtual Route Injector). It's a VM appliance that can be used to flood your topology with thousands of routes (tested in GNS3 with 1M BGP prefixes).  You can use it to bring the real world closer to your lab: test co...

Hi Just got my hands on a pair of brand new 4506e, and typing "sh ver", there is a line with -> Jawa Revision 3, RadTrooper Revision 0x0.0x41, Conan Revision 0x1449 ..what is it? Thanks in advance,

Hi, can someone say if this etherchannel configuration between a 3560 and 3750 switch is correct, thanks. 3750 int range fa0/11 - 12description ETHER CHANNEL TRUNK LINK TO S3750switchport trunk encapsulation dot1q switchport mode trunkswitchport trun...