Cheatsheet: Difference between revisions
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= ARP vs MAC Table =▼
<center>▼
{| class="wikitable"▼
|-▼
! ARP Table !! MAC Table (or CAM Table)▼
|-▼
| Layer3 address to Layer2 address resolution || Layer2 address to Interface binding▼
|-▼
| Matches IP addresses to MAC addresses || Maps Ports to MAC addresses▼
|-▼
| Needed to forward packets at layer 3 || Used to Switch frames to the right output interface▼
|-▼
| Kept by L3 devices || Kept only by L2 devices▼
|-▼
| No entry for dest IP address, machine will send ARP request || If no entry, switch will flood the frame▼
|-▼
| Default timeout is 4 hours || Default timeout is 5 minutes▼
|-▼
| Filled by each ARP reply || Filled by source MAC of each frame passing through switch▼
|}▼
</center>▼
<br />▼
= Fragmentation =
Line 447 ⟶ 470:
Timeout Value is maximum time before a half-completed connection is dropped from the queue
The range is 0–50s; default is 20s
▲= ARP vs MAC Table =
▲<center>
▲{| class="wikitable"
▲|-
▲! ARP Table !! MAC Table (or CAM Table)
▲|-
▲| Layer3 address to Layer2 address resolution || Layer2 address to Interface binding
▲|-
▲| Matches IP addresses to MAC addresses || Maps Ports to MAC addresses
▲|-
▲| Needed to forward packets at layer 3 || Used to Switch frames to the right output interface
▲|-
▲| Kept by L3 devices || Kept only by L2 devices
▲|-
▲| No entry for dest IP address, machine will send ARP request || If no entry, switch will flood the frame
▲|-
▲| Default timeout is 4 hours || Default timeout is 5 minutes
▲|-
▲| Filled by each ARP reply || Filled by source MAC of each frame passing through switch
▲|}
▲</center>
▲<br />
| |||