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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...

we are using cisco 6509 series switches as core switches. and Cisco 4510,4507 series switches as edge switches. all the vlans are created at core switches and propogating to edge switches through VTP. we are using OSPF as routing protocol at core swi...

Resolved! BGP scenario

Hi everybody.Please consider the following BGP scenario with the default settings i.e AS path will be used to choose the best path.Customer Network(AS1)---link1----ISP1(AS2)----------ISP3(AS3)--------ISP4(AS4)--PC                                     ...

sarahr202 by Level 5
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Hi everybodyThis is what my book says:Ospf  elects DR/bdr on NBMA int.  Dynamic neighbor discovery is not permitted therefore we need to use " neighbor A.B.C.D " command.I found something diffferent:R1-----f0/0----sw------f0/0----R2Above I changed th...

sarahr202 by Level 5
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hi ,i want to ask about etherchannel  and especailly , why we type the command #channel-protocol pagpor #channel-protocol lacpi mean we can type desirable , auto ,on for pagp,but why we need to type the command #channel-protocol pagpcurrently im conf...

Dr.X by Level 2
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I just received a new 4510R+E switch with CAT4500e SUP7e Universal Image cat4500e-universal.spa03.01.01.sg.150-1.x01.bin software imag with License Level ipbase. We specified in the order to receive CAT4500e Universal Crypto Image with License Level ...

diek by Level 1
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Hi all, I have 2 RPs in my scenario. I want RP1 to only entertain FF08::9, whereas RP2 shall be the rp for rest of the range i.e. FF00:/8. When i define the access-list with /128 prefix and try to apply it when configuring rp on RP1, it gives an erro...

Jonn cos by Level 4
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hi every body ..i have a layer 3 etherchannel with 2 port on a 3560 switch and the other side of channel is the vlan interface of a layer 2 switch with 2 access interface and its working well !so i wanna send all traffic on the first link of channel ...

Hi All,Thanks to this forum and its members for all the support I had received until now.We have our DataCenter core switches composed of redundant 2*Cisco 6504 switches. The redundant switch / Chassis went down due to hardware issue and we have got ...

Hi,Is it possible to identify Layer 2 devices in a network without any third party tools ?Lets say if I am checking out a network for the first time and I login to one of the PCs , I can get information on the Layer 3 gateway device from the default ...

I want to restrict the amount of bandwidth that is being consumed by our backup between two servers.  We have a server that is connected to switch A that is at 10.1.1.1 that is going accross our network to 10.2.1.1.  How do I put something in our rou...

Hello,I need to configure a subinterface eg g0/0.1 and g0/0.2 with a untagged VLAN for each subinterface on a Cisco 2821.My configuration is:Interface giga 0/0.1 encapsulation dot1q 10 In address 10.0.0.1 255.255.255.0Interface giga 0/0.2 encap...

Hi All,  I am recently certified CCNP R & S.  My skills and experience lie in this area... Switching, OSPF, EIGRP BGP etcI would like to progress on to the CCIE R & S but have had very little exposure to QOS and MPLS, VPN's Frame Relay, ATM etc - bas...