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Member since ‎03-18-2023
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## Loops in an STP-enabled network - How?

Hello,I've got a question about STP/RSTP (it applies to both, but I'll just say STP). If I connect several switches and the STP algorithm eventually creates a loop-free environment, then how can a single new switch cause a loop?Let's look at an examp...

## How can 172.16.0.0/16 subnetted as 172.16.0.0/23 = 512 subnets?

Hello, Can someone please help me with these subnetting problems? 1) Suppose you have the network 172.16.0.0/16. How many subnets do you get if you subnet it to a /23? I'd say you get 2^7=128, because 23-16=7. This calculator agrees with me, and it l...

## ARP between hosts in different branch offices

Hello, I'd like to know how an ARP request between hosts that are physically located in two branch offices (so separated by a WAN link) but belong to the same VLAN gets delivered. Topology:Host A -> Switch A -> Router A -> ISP -> Router B -> Switch B...
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 Member Since ‎03-18-2023 04:52 PM Date Last Visited ‎03-26-2023 07:41 AM Posts 14 Total Helpful Votes Received 1