Operate and maintain
Documents under this category provide functional descriptions and procedures for configuring, operating, and maintaining 7705 SAR software.
- Basic System Configuration Guide
  This guide provides an overview of the CLI and describes 7705 SAR boot options file (BOF) configuration, file system management, and basic system management such as node timing and synchronization.
- Interface Configuration Guide
  This guide describes the functionality of the 7705 SAR cards, modules, and ports and how to configure these components.
- MPLS Guide
  This guide describes how to configure MPLS, RSVP-TE, PCEP, and LDP protocols on the 7705 SAR.
- Quality of Service Guide
  This guide describes the Quality of Service (QoS) functionality provided by the 7705 SAR and how to configure and implement QoS on the router.
- Router Configuration Guide
  This guide describes how to configure logical IP routing interfaces, VRRP filtering, routing policies, and the cflowd tool on the 7705 SAR.
- Routing Protocols Guide
  This guide describes how to configure unicast routing protocols (OSFP, IS-IS, BGP, RIP) and multicast routing protocols (IGMP, MLD, PIM, MSDP) supported on the 7705 SAR.
- Services Guide
  This guide describes how to configure service parameters such as service access points (SAPs) and service destination points (SDPs), Layer 2 and Layer 3 services, security functions (IPSec), and encryption functions (NGE) on the 7705 SAR.
- System Management Guide
  This guide describes how to configure system security and access features, SNMP functionality, and event and accounting logs on the 7705 SAR.

MACsec 802.1AE header – security TAG

The MACsec 802.1AE header includes a security TAG (SecTAG) field, which is identified by the MACsec Ethertype. The SecTAG field contains the following information:

association number (AN) within the channel
packet number (PN) to provide a unique initialization vector for encryption and authentication algorithms, as well as protection against replay attacks
optionally encoded LAN-wide secure channel identifier (SCI)
TAG control information (TCI)
short length (SL)

The following figure shows the format of the SecTAG.

October 30, 2024