These addresses are used for control packet such CDP/DTP/VTP/Pagp, STP and CGMP.
0100.0ccc.cccc - CDP/DTP/VTP/Pagp/UDLD, Depending on SNAP protocol type.
0100.0ccc.cccd - STP >> BPDUs generated by a Cisco Catalyst switch on 802.1q trunks are destined to the MAC address 0180.C200.0000 only for VLAN 1: BPDUs for other vlans have a destination MAC address of 0100.0CCC.CCCD. This address is a multicast address and it is Cisco proprietary.
The 802.1d standard mandates the use of the Mac address 0180.C200.0000. Cisco uses 0100.0CCC.CCCD to achieve tunneling of Vlans other than vlan 1 on a MST cloud.
0100.0cdd.dddd - CGMP >> Router sends CGMP multicast packets to the switches at a well known multicast MAC address: ? 0100.0cdd.dddd
Switches send and listen for packets destined to these mac-addresses.
Question We run asr9001 with XR 6.1.3, and we have a very long delay to
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investigation, the there is 1s delay between the client KEXDH_INIT and
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Introduction The purpose of this document is to demonstrate the Open
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Hi, I am seeing quite a few issues with patch install and wanted to
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