Users Guide

Figure 42. FRRP Ring using VLTi links
Important Points to Remember
• VLTi can be congured only as the primary interface for the primary interface of any FRRP ring.
• Only RSTP and PVST are supported in the VLT environment. Enabling either RSTP or PVST eects FRRP functionality even though
these features are disabled on FRRP enabled interfaces.
• Dell Networking OS does not support coexistence of xSTP and FRRP congurations. Meaning, if there is any active FRRP ring in the
system, then you cannot enable xSTP in the system globally or at the interface level. Similarly, if xSTP is enabled, then you cannot
congure FRRP in the system.
• You cannot congure VLT LAG interfaces as FRRP ring interfaces.
• When ICL is congured as an FRRP ring interface, you cannot remove ICL and VLT domain congurations.
• When FRRP is enabled on a VLT domain, you cannot enable any avor of the spanning tree protocol (STP) concurrently on the nodes
corresponding to that VLT domain. Meaning, FRRP and xSTP cannot coexist in a VLT environment.
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Force10 Resilient Ring Protocol (FRRP)