Cisco C880 M5 Configuration Guide
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2.5 Serial over LAN (SOL)
Figure 4: BMC and SOL
The SOL character data is then exchanged between the BMC of the managed system
and the remote workstation as SOL messages. The SOL messages are
encapsulated in RMCP+ data packets and transferred in UDP datagrams over an
Ethernet LAN connection using IPv4 (Internet Protocol Version 4). The RMCP+
protocol is based on the RMCP protocol, but includes extensions for encryption,
authentication, etc.
Serial over LAN permits “headless” management by console redirection by both the
BIOS and the operating system of the managed server. High-cost concentrator
solutions are not required.
