Brocade FastIron Ethernet Switch Administration Guide - Manual (Page 116)

Hitless-supported services and protocols - FSX 800
and FSX 1600 (Continued) TABLE 12
Traffic type Supported protocols
and services Impact
Security • 802.1X, including use
with dynamic ACLs
and VLANs
• IPv4 ACLs
• IPv6 ACLs
• DHCP snooping
• Dynamic ARP
inspection
• EAP with RADIUS
• IP source guard
• Multi-device port
authentication,
including use with
dynamic ACLs and
VLANs
Supported security protocols
and services are not
impacted during a switchover
or failover.
NOTE
If 802.1X and multi-device
port authentication are
enabled together on the
same port, both will be
impacted during a switchover
or failover. Hitless support for
these features applies to
ports with 802.1X only or
multi-device port
authentication only .
Configured ACLs will operate
in a hitless manner, meaning
the system will continue to
permit and deny traffic during
the switchover or failover
process.
Other services
to
Management • AAA
• DHCP
• sFlow
• SNMP v1, v2, and v3
• SNMP traps
• NTPv4
• Traceroute Supported protocols and
services are not impacted
during a switchover or
failover.
DNS lookups will continue
after a switchover or failover.
This information is not
synchronized.
Ping traffic will be minimally
impacted.
Hitless management configuration notes and feature limitations
The following limitations apply to hitless management support.
• All traffic going through Ethernet interfaces (if present) on the management modules will be
interrupted during a hitless OS upgrade. This is because both management modules must be
reloaded with the new image. This applies to hitless OS upgrade only. It does not apply to hitless
switchover or failover, which does not interrupt traffic going through Ethernet interfaces on the
standby management module (the module that takes over the active role).
• Static and dynamic multi-slot trunks will flap during a hitless switchover if any of the trunk port
members reside on the management module.
• Layer 3 multicast traffic is not supported by Hitless management.
Hitless management configuration notes and feature limitations
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