User guide

E
XTREME
W
ARE
S
OFTWARE
U
SER
G
UIDE
10-9
ESRP O
PTIONS
Figure 10-5: Summit48 switch ESRP port blocks
For switches that do not use the “i” chipset, all VLANs using a port or port-block
must enable ESRP. This requirement does not apply to switches that use the “i”
chipset.
ESRP O
PTIONS
This section discusses the following ESRP options:
• ESRP Host Attach
• ESRP Domains
• ESRP Groups
• Linking ESRP Switches
• Configuring ESRP and Multinetting
• ESRP and Spanning Tree
ESRP H
OST
A
TTACH
ESRP host attach (HA) is an optional ESRP configuration that allows you to connect
active hosts directly to an ESRP master or standby switch. Normally, the Layer 2
redundancy and loop prevention capabilities of ESRP do not allow packet forwarding
from the standby ESRP switch. ESRP HA allows configured ports that do not represent
loops to the network to continue Layer 2 operation independent of their ESRP status.
Block of
8 ports
123456
7 8 9 10 11 12
13 14 15 16 17 18
19 20 21
49
49R
49
49R
50
50R
50
50R
22 23 24
25 26 27 28 29 30
31 32 33 34 35 36
37 38 39 40 41 42
43 44 45 46 47 48
AMBER
GREEN
FLASHING GREEN
A
L
A
L
=
=
=
ACTIVITY
LINK OK
DISABLED
1000 BASE-X
10/100 BASE-X
MDI-X
Power
Mgmt.
1234 5678 9101112
13
49R49
50R50
14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45 46 47 48
SUG_48f8
Block of
8 ports
Block of
8 ports
Block of
8 ports
Block of
8 ports
Block of
8 ports