Anyone have any advice on NTP version to use as I know you can specify? If you have security in mind, should you specify version 4? What is the default on Nexus or Catalyst switches?
Forum Posts
Resolved! Allowing inbound connection
Hello Cisco. I have some challenging task to accomplish that was assigned to me by my boss and I am pretty new to Networking world. So, I have Cisco router 4221 with int G0/0/0 (which we use were WAN connection) and G0/0/1 for LAN. I have pool o...
Resolved! VLANs and Windows Network Menu
I have several devices located across multiple VLANs and I would like to be able to see said devices in the Windows Network tab. Currently all I am able to see is devices located on the same VLAN as the device I have the network tab open on. Is there...
Hello Guys, please explain vtp pruning, which scenario it will be the solution. Why it is required to configure private vlans in VTP domain. Thanks
Resolved! Switch DHCP for Avaya Phone
for the life of me i can not get a consistent result for our remote site switches to handout DHCP addresses for our Avaya 9611 phones. I have a new location that will not work. the switch is a WS-C2960S-48FPD-L, 15.2(2)E5. Switch settings are: ...
Hello, I want to upgrade one of my 4510R+E in 03.06.05.E to 03.08.06.E Before to do this, redundancy mode is SSO and I want to keep it. IOS 03.08.06.E is in bootflash and copied in slavebootflash. The boot setting to this IOS is ok on bootvar. Then...
Resolved! 4500 Supervisor not showing anything.
I tried changing the image to boot and now when I console into one of the supervisors it is just blank and does not show anything. I console into the other sup and issue the command below. Anyone konw what the problem is? #sh bootvarBOOT variabl...
HI i have a similar issue, i want to allow only certain mac addresses from Voice Vlan going any where using acl and drop the mac addresses that are not defined in the acl, Ive tried mac acl with vlan access map and vlan filter list but it just didn...
I have recently hit a vlan scale limitation FEX N2K-C2348TQ-10GE,which has caused some weird anomalies; 1. by using switchport trunk add vlan "X" on a host interface, it deleted all vlan configuration on that interface and applied the config of the...
Hello at all, I have two switches Cisco C3560 (Model: WS-C3560-8PC, Software version: 12.2(35)SE5, Software Image: C3560-IPBASE-M) and one Cisco ASA 5505. All three devices are in vlan 1 with these ip configuration: Cisco ASA: 192.168.254.254/24 SW...
Hi Team,I have cisco CISCO3945-CHASSIS running with "c3900-universalk9-mz.SPA.154-3.M3.bin" ios where I can observe the high cpu utilization. #sh process cpu sorted | ex 0.00CPU utilization for five seconds: 97%/95%; one minute: 96%; five minutes: 96...
Resolved! How to calculate encryption on bandwidth
I would like to know how to calculate the bandwidth for aes-256 encryption. it is only increase cpu usage when encapsulation process ?
I see in the release notes that the IE 1000 supports MST but there is now mention whether it supports Rapid-PVST or not. Does someone have the hardware and can check if other modes of spanning tree are supported?
Dear Guys, Last day i had issue while doing the vss on new 4507E+R switch with 2 Sup engines.After connecting eachother both cables was not up and neighbour switch not showing in cdp as well.then we put the command like hw-module uplink select tengig...
Hi Good People, How am i able to reduce power usage on this module? There are only about 8 ports in use. Is it as simple as shutting down the ports or will the Cisco 3945 that powers the card always send full power? I want to reduce power usage on ...
