
Fabric OS 5.3.0 administrator guide 355
Extended ISL modes for 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director
switches, and FR4-18i blade (Condor ASIC)
Table 77
lists the extended ISL modes for switches and blades that have a Condor ASIC.
Configuring external ports
The number of ports that can be configured per port group for each switch depends on both port speed
and distance. The following sections specify the number of external ports available for each switch at a
specific port speed and distance.
4/8 SAN Switch or 4/16 SAN Switch
Table 78
lists the number of ports that can be configured per port group at various distances.
Table 77
Extended ISL modes: 4/32B SAN Switch, 400 MP Router, 4/256 SAN Director switches, FR4-18i blades
(Condor ASIC)
Mode Buffer allocation
Distance @ 1
Gbps
Distance @
2 Gbps
Distance @
4 Gbps
Earliest Fabric
OS release
Extended
Fabrics
license
required?
1 Gbps 2 Gbps
4 Gbps
L0
5 (26)
1
5 (26)
5 (26)
10 km
5 km
2 km
All
No
LE
11
16
26
10 km
10 km
10 km
v3.x, v4.x
No
L0.5
2
18
31
56
25 km
25 km
25 km
v3.1.0, v4.1.0, v4.x,
v5.x
Yes
L1
2
31
56
106
50 km
50 km
50 km
All
Yes
L2
2
56
106
206
100 km
100 km
100 km
All
Yes
LD
3
Auto
Auto
Auto
Auto
Maximum is
500 km
Auto
Maximum is
250 km
Auto
Maximum is
100 km
v3.1.0, v4.1.0,
v4.4.0, v5.x
(depending on the
model)
Yes
LS
4
Based on
user-speci
fied
distance
Based on
user-specif
ied
distance
Based on
user-specif
ied
distance
Based on
user-specified
distance
Maximum is
500 km
Based on
user-specified
distance
Maximum is
250 km
Based on
user-specified
distance
Maximum is
100 km
v5.1.0
Yes
1.
For each data channel (in this case, there are 4) there are 5 credits, plus 6 extra credits.
2.
This mode is supported but cannot be configured on switches running Fabric OS v5.2.0 and later.
3.
The dynamic long-distance mode (LD) automatically configures the number of buffer credits required, based on the actual link distance.
4.
The static long-distance mode (LS) allocates the number of buffer credits based on the user-specified distance.
Table 78
4/8 SAN Switch or 4/16 SAN Switch
Speed
(Gbps)
Number of ports allowed at distance (km)
10 km
25 km
50 km
100 km
250 km
500 km
1
16 ports
12 ports
6 ports
3 ports
1 port
n/a
2
16 ports
6 ports
3 ports
1 port
n/a
n/a
4
8 ports
3 ports
1 port
0
n/a
n/a
Summary of Contents for AA979A - StorageWorks SAN Switch 2/8V
Page 1: ...HP StorageWorks Fabric OS 5 3 x administrator guide Part number 5697 0244 November 2009 ...
Page 16: ...16 ...
Page 20: ...18 ...
Page 24: ...24 Introducing Fabric OS CLI procedures ...
Page 116: ...118 Maintaining configurations ...
Page 170: ...172 Managing administrative domains ...
Page 200: ...202 Installing and maintaining firmware ...
Page 222: ...224 Routing traffic ...
Page 274: ...286 Administering FICON fabrics ...
Page 294: ...306 Working with diagnostic features ...
Page 350: ...362 Administering Extended Fabrics ...
Page 438: ...440 Configuring the PID format ...
Page 444: ...446 Configuring McData Open Fabric mode ...
Page 450: ...452 Understanding legacy password behaviour ...