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Hello, Cisco Community!I’m really happy to share that I’ll be hosting the Cisco Community Lab Series, a brand-new hands-on learning journey designed to help you build practical networking skills step by step.Every Thursday at 8 PM EST, I’ll post a ne...

Hi,The network dirgram  is :dhcp client - ( SW1 port 1 ) - SW1 - ( SW1 port 2 ) - SW2 - dhcp server The SW1 is Catalyst 2960S switch ( WS-C2960S-48TD-L ) with universal image ( c2960s-universalk9-mz.122-55.SE7 ).We tried to enable the dhcp snooping f...

Hi All.I'm just worried that above subjet command will be used in first time in our switching environment.Basically, all of vlans are allowing in x-over trunk interface. Btw, we don't want to allow specific vlan a, vlan b.the work procedure will be h...

syjeon by Level 1
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Hi!A L3 interface is configured as a dhcp relay interface. After the DHCPDISCOVER message from a client is forwarded by this interface to the DHCP server (as defined with the ip helper address command), the DHCPOFFER response from the server is usual...

Dear All,I had a problem with two of our Catalyst3750.I'm trying to configure a Port-Channel using 2 couple of GLC-BX-D & GLC-BX-U SFPs with a Single Fibre pair.this is my network layout:SIDE A SIDE BGLC-BX-D port1 <----> GLC-BX-U ...

f.pau by Level 1
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                   Hello,I try to dual attach a 2960 to my 2 nexus on which peer link and keepalive are OK.The ports are down (notconnect) on the 2 nexus, and I don't see any config error !Another detail, when the SFP is plugged into the port, led is...

My squadron has purchased two ASA 5505s which they would like to use to create a very basic standalone network for training purposes. I have configured two laptops to act as domain controllers for two seperate domains behind each ASA. Thus far I have...

We are wondering about a vPC peer-switch setup whis states to be non-operational!We are running a Cisco Nexus 7010 vPC pair against a Cisco 6500 VSS setup.The VSS system is the root of the MST (STP).We have enabled vPC peer-switch feature on the N7ks...

sstrack by Level 1
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Hi guys,I have a router  Cisco 887c870-advsecurityk9-mz.124-15.XY3.binWhen I am connecting to the router using Cisco VPN client and trying to ping any host from private range 192.168.0.0/24 except the cisco's ip address 192.168.0.254 the router gets ...

glebpe185 by Level 1
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Hello Experts,We have three sites among one is the datacentre. these  sites are running with dynamic routing protocol as OSPF. and they are configured as ospf  backbone area i.e area 0.         Site1----Area0-----Datacentre----Area0-----Site2My quest...

Hi All,I currently have 3 2960's connecting together using daisy chains and I'd like to add a 4th switch into the network. I have been reading that daisy chaining switches together is not the best method and would like to know if a hub&spoke/star top...

Hello,Here's hoping someone been through this already and would like to share their experience with me. In preparing for an upcoming upgrade of our serverswitches (N7K and N55K), I've run into a wellknown issue with ISSU and Bridge Assurance, where I...