HP Traffic Director Server Appliances sa7200/sa7220 and 8200/sa8220 - User Guide

A P P E N D I X C Failover Modes
C271
Notes for the table above:
1. SAP only works if the default gateway = SA8220.
2. The offline SA8220’s routed mode is inactive.
3. Server(s) are on the other side of the inside router.
4. SAP only works if inside router has a default route to the
SA8220.
5. The router must have static routes from brokered subnet to
server-side subnet.
Serial
Cable
Failover
AND
Routed (2)
VIP ARPing N/A Same subnet,
only on
“outside”
N/A Same subnet, only
on “outside”
DHCP No No No No
HOT Yes Yes Yes Yes (5)
HOT and SAP Yes (1) Yes (1) Yes (1) Yes (1) (4)
OPR Yes N/A Yes No
RICH Yes Yes Yes Yes (5)
RICH and
SAP
Yes (1) Yes (1) Yes (1) Yes (1) (4)
Failover
Mode
Feature Single
Interface
with
“outside”
router
Dual Interface Dual
Interface
with
“outside”
router
Dual Interface
with “inside”
and “outside”
routers (3)