Stacking Limitations - Lenovo Flex System Fabric CN4093 Application Manual

Stacking Limitations

© Copyright Lenovo 2015
The CN4093 with N/ OS 8.2 can operate in one of two modes:
 Default mode, which is the regular stand‐alone (or non‐stacked) mode.
 Stacking mode, in which multiple physical switches aggregate functions as a
single switching device.
When in stacking mode, the following stand‐alone features are not supported:
 ACL Logging
 Active Multi‐Path Protocol (AMP)
BCM rate control

 Border Gateway Protocol (BGP)
Converged Enhanced Ethernet (CEE)

 Edge Control Protocol (ECP)
Flexible Port Mapping

 IGMPv3
 IGMP Querier
 IGMP Relay
 Internet Key Exchange version 2 (IKEv2)
 IP Security (IPsec)
 IP version 6 (IPv6)
 Loop Guard
 Loopback Interfaces
 MAC address notification
 Network Configuration (NETCONF) Protocol
Operation, Administration, and Maintenance (OAM)

 OSPF and OSPFv3
Port flood blocking

 Private VLANs
Protocol‐based VLANs

 RIP
 Root Guard
 Router IDs
 Route maps
 sFlow port monitoring
 Static MAC address adding
 Static Multicast Routes
 Switch Partition (SPAR)
 Uni‐Directional Link Detection (UDLD)
 Virtual Router Redundancy Protocol (VRRP)
Virtual Link Aggregation Groups (VLAG)

 Secure audit logging
Note: In stacking mode, switch menus and command for unsupported features
may be unavailable, or may have no effect on switch operation.
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Chapter 14: Stacking