OpenControls Logo

STIG Viewer

STIGViewer Support

The Nokia layer 2 switch must implement Rapid Spanning Tree Protocol (RSTP) where virtual local area networks (VLANs) span multiple switches with redundant links.

Overview

Finding IDVersionRule IDIA ControlsSeverity
V-283688NOKI-L2-000160SV-283688r1204092_ruleCCI-000366medium
Description
STP is implemented on bridges and switches to prevent layer 2 loops when a broadcast domain spans multiple bridges and switches and when redundant links are provisioned to provide high availability in case of link failures. Convergence time can be reduced significantly using RSTP (802.1w) instead of STP (802.1d), resulting in improved availability. RSTP should be deployed by implementing either Rapid Per-VLAN Spanning Tree (Rapid-PVST) or Multiple Spanning Tree Protocol (MSTP). The latter scales much better when there are many VLANs.
STIGDate
Nokia Service Router OS 25.x Layer 2 Switch Security Technical Implementation Guide2026-06-15

Related Frameworks

1 mapping across 5 frameworks
SCF0 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (8) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

CFG-01Configuration Management Program
1.00
END-01Endpoint Device Management (EDM)
1.00
END-04Malicious Code Protection (Anti-Malware)
1.00
END-06Endpoint File Integrity Monitoring (FIM)
1.00
MON-01Continuous Monitoring
1.00
MON-01.7File Integrity Monitoring (FIM)
1.00
CFG-02Secure Baseline Configurations
0.50
CFG-02.7Approved Configuration Deviations
0.50
NIST 800-530 mappings

No source states a mapping between these directly.

Also reachable in 2 hops (100) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

AC-12Session Termination
1.00
AC-16(1)Dynamic Attribute Association
1.00
AC-17(1)Monitoring and Control
1.00
AC-2Account Management
1.00
AC-2(1)Automated System Account Management
1.00
AC-2(11)Usage Conditions
1.00
AC-2(3)Disable Accounts
1.00
AC-2(4)Automated Audit Actions
1.00
AC-24(1)Transmit Access Authorization Information
1.00
AC-25Reference Monitor
1.00

+90 more (top 10 by confidence shown)

NIST 800-1710 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (2) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

3.4.1
1.00
3.4.2
1.00
CCI1 mapping
CCI-000366
1.00
NIST CSF 2.00 mappings

No source states a mapping between these directly.

Also reachable in 3 hops (5) derived by us, not asserted by any source

Each of these is a route we composed by chaining published mappings. No publisher states a relationship between the two endpoints.

DE.CM-09
1.00
PR.PS-01
1.00
PR.DS-10
0.50
PR.PSPlatform Security
0.50
PR.PS-05
0.50

Who does this work

10 NICE work roles and 9 EC-Council certifications.

This is an inference across published mappings, not a single claim by anyone. This check maps to a control, which maps to a Cybersecurity Framework outcome, which NIST assigns to the work roles below. EC-Council separately maps its certifications to those same roles.

A certification prepares someone for a role. It is not evidence that a holder is qualified, and neither NIST nor EC-Council has stated that any certification here addresses this check.

Work-role assignments published by NIST (NICE Framework Components 2.2.0 and the CSF 2.0 OLIR crosswalk). Certification mappings published by EC-Council.

Details

Check Text (C-283688r1204092_chk)

In cases where VLANs do not span multiple switches, it is a best practice to not implement STP. Avoiding the use of STP will provide the most deterministic and highly available network topology. If STP is required, review the router virtual private local area network service (VPLS) configuration to verify RSTP has been implemented. Use the command below and verify STP mode is set to RSTP for VPLS, where RSTP should be implemented. - show service id 10 stp | match Mode Mode : Rstp Last Top. Change : 0d 00:00:00 If RSTP has not been implemented where STP is required, this is a finding.

Fix Text (F-88158r1204091_fix)

Configure RSTP to be implemented at the access and distribution layers where VLANs span multiple switches. For VPLS services where RSTP should be implemented, use the command below to enable RSTP for an already-created VPLS service: - configure service vpls <vpls id> - stp mode rstp - no shutdown