Top new questions this week:
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I have a router running Cisco IOS XR with established L2 ISIS adjacency with a neighbor router. I would like to inject only the IPv4 address configured on loopback interface into the ISIS. The route ...
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According to Mapping Cisco CSR 1000v Network Interfaces to
VM Network Interfaces document, the newer CSR 1000v routers no longer have the dedicated management interface Gi0:
In Cisco IOS XE Release 3....
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This is my routing-policy:
policy-statement rp-add-as-path-3times-local-as {
term prefix1 {
from {
route-filter 1.1.1.0/22 orlonger;
}
then {
as-...
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This picture is a part of the Intel E10GSFPLR (SFP+, Long Reach) datasheet. Can I use them in a short link (less than 1 meter) without any attenuator? Which numbers are important in this datasheet to ...
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Lets say we have 3 devices in the same shared medium : A, B and C.
A wants to send a message to B, so before, it sends an ARP request as a broadcast message. When B receives it, it will update its ARP ...
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Please go easy on me as I'm just a noob in the networking space.
As far as I have learnt, layer 2 protocols use MAC addresses for communication, which doesn't really depend on what network you're in ...
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Greatest hits from previous weeks:
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Yesterday interviewer ask me what is port number for ping and which protocol ping use TCP/UDP.
After interview I search on internet and found different results someone says ICMP uses Port 7, someone ...
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This question may not look as an important one and in fact it is just out of curiosity.
But to the point:
Is Ethernet port blinking really useful?
Ethernet ports usually have two light indicators ...
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You often hear the terms Subnet and VLAN used interchangeably. With the ubiquitous nature of IP these days, when are the two not considered roughly the same from a high-level, understanding that ...
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Say the switch table is empty. If computer A sends a frame destined to computer B, the switch will broadcast asking who has the mac address of B. What if C suddenly sends a frame to A? What is the ...
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I wonder what can cause the first line output of the command show interfaces to be: FastEthernet is up, line protocol is down.
In other words,
Is the cable that is connected to the local interface, ...
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According to wikipedia host is
A network host is a computer or other device connected to a computer network. A network host may offer information resources, services, and applications to users or ...
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one difference is that Rapid Spanning Tree Protocol (RSTP IEEE 802.1W) assumes the three Spanning Tree Protocol (STP) ports states Listening, Blocking, and Disabled are same (these states do not ...
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