Packet Captures
Viewing 1 - 6 of 6
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MSTP_Intra-Region_BPDUs.cap (1.7 KB)
| Packets: 10 | Duration: 10s | Downloads: 3975 |
MSTP BPDUs captured on an intra-region root port.
00:1f:27:b4:7d:80 - CIST Root (is in another MSTP Region)
00:16:46:b5:8c:80 - CIST Regional Root, Root for Instance 0, 2
00:1e:f7:05:a8:80 - Root for Instance 1
Notice in frame 1 that 00:1e:f7:05:a8:80 uses 32768.00:16:46:b5:8c:80 (Regional Root BID) as bridge ID in the main STP header to make the region appear as a single bridge.
QinQ.pcap.cap (184 bytes)
| Packets: 2 | Duration: 2s | Downloads: 7558 |
ARP requests having two vlan IDs attached (QinQ)
802.1Q_tunneling.cap (5.0 KB)
| Packets: 26 | Duration: 35s | Downloads: 10658 |
rpvstp-trunk-native-vid5.pcap.cap (1.8 KB)
| Packets: 22 | Duration: 11s | Downloads: 6667 |
Rapid per-VLAN spanning tree capture of a trunk port, configured with native VLAN 5, VLAN 1 is also active over the trunk.
Capture shows that 3 BPDUs are sent out, one for classic STP (Frame 4, for example), one for the native VLAN 5 (not tagged - Frame 5) and one for each other active VLAN (tagged - Frame 3).
The PVST BPDUs contain the VLAN ID at the end of the frame (01 and 05, respectively).
rpvstp-trunk-native-vid1.pcap.cap (6.4 KB)
| Packets: 81 | Duration: 45s | Downloads: 5342 |
Rapid per-VLAN spanning tree capture of a trunk port, configured with native VLAN 1 (default), VLAN 5 is also active over the trunk.
Capture shows that 3 BPDUs are sent out, one for classic STP (Frame 4, for example), one for the native VLAN (not tagged - Frame 3) and one for each other active VLAN (tagged - Frame 5).
The PVST BPDUs contain the VLAN ID at the end of the frame (01 and 05, respectively).
Viewing 1 - 6 of 6
- 1