Nortel Networks 8000 - Manual (Page 479)

13 Medium-MIB configuration
Nortel Secure Router 8000 Series
Configuration -WAN Access
13.1 Introduction
The standard MIB includes the following:
• The interface management MIB, including the Ethernet interface, the POS interface, the
ATM interface, the serial interface, the T1/E1 interface, the T3/E3 interface, the FR
interface, the X.25 interface and the ISDN interface
• The network management MIB, such as DISw
• The IP&Route MIB, including OSPF, BGP, RIP and IP Forward
• The equipment management MIB (Entity)
• The attribute management MIB (RMON)
The private MIB includes:
• The maintenance attribute MIB, including Config, Flash, Memory, Process, Environment
and syslog
• The IP&Route MIB, including IP-stat and Tcp-ext
• The QoS MIB, including RTTMON and SAA-APM
• The reliability MIB, including VRRP and HSRP
The medium-MIB is the MIB information on the physical layer interface, including:
• The statistics about the signal physical states in the transmission, such as the signal loss,
the frame loss, the CRC error.
• The acquisition and configuration of the system parameters of the interface card, such as
the line code, the frame format, the clock source and the loopback mode.
You acquire all the physical information through reading the internal register of the
corresponding chip on the interface card. The acquisition ability is determined by the
capability of the chip used on the interface card.
The medium-MIB of the SR8000 contains two types, DS1 and SONET. DS1 supports the
standard interface cards of E1 and T1. SONET supports the interface cards of POS and CPOS.
13.2 Configuring attributes of the medium-MIB
13.2.1 Establishing the configuration task
Applicable environments
The network management station remotely manages routers through the MIB-Browser, learns
the status of the interface cards and immediately takes action according to the state.
Preconfiguration tasks
None.
13-2 Nortel Networks Inc. Issue 5.3 (30 March 2009)