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One of our customer has a full Layer 3 designed network, e.g. 5 buildings which are connected via redundant Layer 3 links. Each building has e.g. 10 floors and each floor has it own vlan an its own IP Address range. Everything works fine.Now the cust...

Kai Onken by Level 1
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hihave 2 cisco 3550 switches trunked to each other carrying vlans 10,20 and 30, but VLAN 1 pruned.THESE configs are on both cisco switches:Port        Vlans allowed on trunkFa0/3       1-4094Po1         10,20,30Po1 has port fa0/2 in it - only fa0/2in...

visitor68 by Level 5
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Dears,I have one WS-6509-E chassis with VS-720-10G-3CXL supervisor. The current IOS version is 15.1.Right   now the WS-SVC-NAM3-6G-K9 and WS-SVC-ASA-SM1-K9 are installed on the   chassis but the suporvisor can not work with these modules.I have an IO...

Hello there,I've got a L3 etherchannel issue whereby I cannot add additional ports into the existing bundle (which currently has only 1 interface to it).  When I attempt to add a 2nd interface, it is down within the port-channel.  Here are the config...

Hi everybody.Lan--R1------T1------R2---lanAbove we are using unchannelized t1 to provide connectivity between R1 and R2.I just need an example as to how we configure R1 above for unchannelized T1 connection.I really appreciate your help.thanks. and h...

sarahr202 by Level 5
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Hi everybodyI am just rying to understand the difference between vwic and wic -1tdsu-t1 cards.WIC-1DSU-T1-V2The above card can only be used for unchannelized t1 connectivity?Or can we also use this card to pstn for channelized T1 connectivity?On the ...

sarahr202 by Level 5
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Hello all,Cisco 2911 here.Ive been trying to make static host records to resolve to an internal adress.For example ip host trailers.apple.com 192.168.1.4 is what i typed into conf t.It saved it, its in the configuration now but whenever i ping i keep...

Hi - Im currently running a GNS3 lab with 4 3640 routers.  I am running OSPF & BGP, OSPF to redistribute my connected subnets - and BGP to redistribute my static subnets.  3 out of the 4 seem to be working properly.  Core #1, 2 and 4 are receiving th...

Guys,I wanted to ask the  forum one question why DSCP AF-41 marking is used for Video. I know  Cisco designed and recommedded it in that way, but is there any other  technical reason behind it?Cheers,Sugata

sugatada9 by Level 1
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Hi everybodyPlease consider the following example:PCs----lan-----R1- s0---v.35----DSU/CSU----T1 (TELCO)---------CSU/DSU---V.35-----s0-R2----lan--PCsAbove, V.35 cable is under 15 meters, so  we can have maximum 1.54Mbps between router and DSU.1)Our te...

sarahr202 by Level 5
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