Owner's manual

Hitless-supported services and protocols - FSX 800
and FSX 1600 (Continued)
TABLE 12
Traffic type Supported protocols
and services
Impact
• Layer 2 switching
(VLAN and 802.1Q-
in-Q)
• MLD v1 and v2
snooping
• MRP
• Multiple spanning
tree (MSTP)
• Physical port/link
state
• PIM SM snooping
• Port mirroring and
monitoring
• Port trunking
• Rapid spanning tree
(RSTP)
• Spanning tree (STP)
• ToS-based QoS
• Policy Based Routing
• Traffic policies
• UDLD
• VSRP
active management module
becomes operational, new
switched flows are learned
and forwarded accordingly.
The Layer 2 control protocol
states are not interrupted
during the switchover
process.
Configured ACLs, PBR or
GRE & IPv6 to IPv4 Tunnels
will operate in a hitless
manner.
Layer
3 IPv4
routed
traffic
• BGP4
• IPv4
unicast
forwarding
• OSPFv2
• OSPFv2
with ECMP
• Static
routes
• IPv4 PIM
(IPv4 non-
stop
multicast
routing
needs to
be enabled
for IPv4
PIM to be
hitless.)
• VRRP
• VRRP-E
• GRE
• IPv6 to
IPv4
Tunnels
Layer 3 routed
traffic for
supported
protocols is not
impacted during
a Hitless
management
event.
Other Layer 3
protocols that
are not
supported will
be interrupted
during the
switchover or
failover.
If BGP4
graceful restart
or OSPF
graceful restart
is enabled, it
will be
gracefully
restarted and
traffic will
converge to
normalcy after
the new active
module
becomes
operational.
Refer to "OSPF
graceful restart"
and "BGP4
graceful restart"
sections in the
FastIron
Ethernet Switch
Layer 3 Routing
Configuration
Guide.
Configured
ACLs, PBR or
GRE & IPv6 to
IPv4 Tunnels
will operate in a
hitless manner.
Operations, Administration, and Maintenance
114 FastIron Ethernet Switch Administration Guide
53-1003075-02