Switching

Hello all,Need advise/help from this community.Currently there is existing supervisor Sup V-10GE installed on 4507R-E chassis.I want to add another supervisor Sup-8E to the chassis.Both supervisor running on different IOS version/type (existing using...

Hello Networkers!I would like to know how a switch handles marking of non-IP frames when 'mls qos trust dscp' is set on a trunk port.DSCP is contained in an IP header and is thus not present in frames carrying layer 2 protocols.Here are some basic de...

Hello,I am trying to enable my Cisco 2950 as a DHCP client (I know this is not how it works in real life) for test purpose in the lab. That is the switch should receive an ip address by the router which it is connected to, I have configured the route...

Hi, All My 6509 Backbone used 80% high memory. Device information ====Supervisor: WS-SUP32-GE-3BIOS Version: 12.2(33)SXH8b Is this a memory leak bug ID CSCtn46434?(https://tools.cisco.com/bugsearch/bug/CSCtn46434) Or another bugs? I need your help. I...

I got an error message from syslog server that SSH login failed on a switch: 000168: May 30 09:09:44: %SEC_LOGIN-4-LOGIN_FAILED: Login failed [user: deadmin] [Source: 10.100.6.20] [localport: 22] [Reason: Login Authentication Failed] at 09:09:44 EDT ...

Hello,I have a very strange behaviour on my new LAN infrastructure.Previously I have 2950 switches where industrial devices were connected.I migrate to 2960-X, link and protocol comes UP, but impossible to ping the industrial devices from core, where...

Kindly ... we have a Chasis cisco 4507R with super engine WS-X45-SUP6-E  and  cat4500e-entservicesk9-mz.122-40.SG.bin IOS .... and 48 Giga port slot WS-X4548-GB-RJ45 ... and the problem is that the traffic in each interface doesnt pass over 200 M .. ...

We have a Cisco 2821 V/K9 Router.  We are having security cameras installed in our building that are connected to a Green net Trendent PoE+ Switch TPE-T80H.  I have been told to get those cameras connected to our network using subnet 25 - those are m...

Having odd issue and I just can't see what I have wrong.I have a Cisco 2901 router running c2900-universalk9-mz.SPA.152-4.M4.binand have the following configured for the VLAN's I am trying to get working.interface GigabitEthernet0/1 no ip address dup...

We have a network utilizing 2 WS3850-48P switches, stacked.  Wireless users are complaining of very slow operation (latency)....right now this is set:Qos wireless-default-untrusted......would changing this to trusted improve wireless operations?

Is it possible to setup NAT using the Interface for the Global Outside portion of the NAT Setup?All ports to be Ethernet:My setup (non-specific):2 VLANS (192.168.1.0 ~ 192.168.2.0 /24):1 VLAN - Wired 96 ports1 VLAN - Wireless 2x 3702e (50 clients tot...

Hi All,I'm facing the problem is, when my laptop or PC starting, only can use Internet 5 mins, after that cannot suffering the internet about 5 - 10 mins then it back to normal, this stuff happen everyday. But can use communication messenger like sky...