Network Engineering Weekly Newsletter - Friday, June 27, 2014

Network Engineering newsletter

Top new questions this week: ipv6 Aggregatable global unicast addresses Studying IPv6 addressing I haven't understood IPv6 aggregable global unicast addresses, I mean on RFC 4291 there is a generic scheme: | n bits | m bits | 128-n-m bits … ipv6   asked by newbie 7 votes answered by Dubu 3 votes If two NICs are bonded and connected to different switches how does a router decide which switch to forward the packets to? I am trying to understand how the architecture works in case of NIC Bonding. The scenario is: There are 2 NICs on the same system. Both are bonded to support failover and load balancing. Hence the IP … router switch ipv4 ethernet   asked by user3007493 6 votes answered by longneck 9 votes Cisco: Is it possible to see an EFP path within an EVC? The topology diagram below shows multiple CPE devices, each has multiple WAN sub-interface that are dot1q tagged as VLAN 10 and 20 in this example. The PE ME3600 devices has an SVI with an IP address … cisco layer2 evc   asked by jwbensley 5 votes answered by jwbensley 6 votes Can 40GBASE-LR4 be used for 4x10G? I have a 40GBASE-SR4 QSFP transceiver which can be used for 4x10G SFP+ communications using a 40G QSFP+ to 4x10G SFP+ multi-mode optical spliter. I am looking for an LR (single-mode) equivalent of … 10gbase transceiver   asked by Randomblue 5 votes answered by Ricky Beam 6 votes Cisco packet tracer no shut or no shutdown I just want to whether their is any difference between the command no shut or no shutdown. cisco   asked by mwshubham 5 votes answered by Adam Loveless 6 votes Is there a way to find out if a specific device is a router? I am working on a small project that creates a map of your local network and I need to be able to determine if X.X.X.X is a router or a device connected to it. My original strategy was to use nmap … router ipv4   asked by jkrix 4 votes answered by YLearn 2 votes Is it possible to force DHCPv6 to configure address of a client without DHCP Server? I'm trying to formulate a way to send Ipv6 address to users in my network I'm doing a project where I need to mitigate an attack: The scenario is a user is using SLAAC to genarate its adress but the … ipv6   asked by Franz Justin A. Buenaventura 4 votes answered by Jens Link 1 vote Greatest hits from previous weeks: What causes total output drops on a cisco switch interface? I have an HP c7000 blade chassis which contains Cisco 3120X and Cisco 3120G switches running ios 12.2(58)SE1. The blades themselves are very lightly loaded yet many interfaces on different blade … cisco cisco-catalyst switch cisco-ios-12   asked by fcorrao 11 votes answered by Aaron 11 votes Cisco ASA Routing Issue I am working on a lab right now and am having some issues with ASA routing. Here is the current network topology: Currently if I login to the console on the ASA or Router I can get outside to the … cisco router cisco-asa firewall   asked by thefiddler 4 votes answered by one.time 9 votes Can you answer these? BGP feeds from ISP? We've deployed the caching server on our Local ISP. The caching method is, any request coming from our local ISP clients should be directed to the local Caching server and rest should be forwarded to … routing bgp linux   asked by shahzaib1 1 vote ASR9K line default width 0 does not work. Any idea? I was trying to set default terminal width to 0 (or longer than 80) on ASR9K router. But as seen below, once I logout and login terminal width is changed to 80. Please advise me what is wrong with … cisco-asr   asked by Minsuk Song 1 vote Need help to understand whats transmited over SNMP when i use the ipNetToPhysicalEntry OID I need a little bit of help to understand what Information the ipNetToPhysicalEntry OID 1.3.6.1.2.1.4.35.1 exactly includes. I thought its a combination between the Neighbor Cache and the ARP Cache, … cisco snmp   asked by eragon-2006 2 votes

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