CISCOSB-SMON-MIB

Description: Provides Switch Monitoring (SMON) extensions for traffic statistics and port monitoring on Cisco Small Business switches.

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CISCOSB-SMON-MIB extends the standard Switch Monitoring (SMON) MIB with Cisco Small Business-specific objects for configuring port mirroring (port-copy) sessions used to capture and analyze traffic. It exposes configuration objects controlling whether port-copy sessions are enabled, the copy destination mode (monitor-only versus network), and whether VLAN tags are preserved on mirrored frames, alongside a version/capability indicator for the SMON feature set. As a diagnostic-configuration MIB, it's most relevant to software status monitoring in the sense of verifying that traffic-capture sessions are correctly enabled and configured before relying on them to troubleshoot a network problem. It is an extension of the IETF SMON MIB (RFC 2613) adapted for Cisco Small Business switch hardware. It is deployed on Cisco Small Business switches whenever an administrator needs to mirror traffic to a monitoring port for packet capture or analysis, and CISCOSB-SMON-MIB SNMP monitoring confirms the mirroring session is enabled and correctly configured before it's relied upon.

Before capturing traffic to diagnose a network issue, an administrator checks rlPortCopySessionsEnabled to confirm mirroring is globally enabled and rlPortCopyMode to see whether the destination port is set to monitor-only or network mode. The rlPortCopyVlanTaggingTable controls whether VLAN tags are preserved on copied frames, which matters if the packet-capture tool expects to see original VLAN tagging. rlPortCopyMibVersion and rlPortCopySupport confirm which SMON capabilities the switch model actually supports before the session is configured.

Provides switched port analyzer (SMON) and port mirroring configuration for traffic monitoring on Cisco Small Business switches.