Consider the following switched network with four switches S1, S2, S3, S4 and se
ID: 3688554 • Letter: C
Question
Consider the following switched network with four switches S1, S2, S3, S4 and seven hosts H1, H2, H3, H4, H5, H6, H7.
The MAC addresses of the host’s NICs are M1, M2, M3, M4, M5, M6, M7. The following traffic now takes place in the given order:
1. H1 sends a frame to H3. 2. H2 sends a frame to H4. 3. H4 sends a frame to H3. 4. H3 sends a frame to H2. 5. H4 sends a frame to H1. 6. H2 sends a frame to H3.
For each frame sent, answer the following:
Show the forwarding table at each switch after the switch receives the frame.
For each switch, indicate whether the switch forwards the frame on all links (except the one the frame arrived on), or whether the switch forwards the frame along a single link
.
Explanation / Answer
Answer :
1) switches learn the MAC address of host that is drectly connected to its interface.
2) if the communicating hosts are connected to different switch they follow arp process to learn mac address . once they learn the mac address they maintain the enrty mac addres table.
3) in arp process for the first time host broadcast the mac address to check the correct mac . once it learns it will send unicat frames.
considering that each host / switch knows he mac adress of each host.
so the mac table for switch 1
mac table for Switch 2
mac table for S4
mac table for S3
Mac address switch Interface M1 1 M2 2 M3 2 M4 2 M5 8 M6 2 M7 2