HP AE370A - Brocade 4Gb SAN Switch 4/12 Administrator's Manual page 327

Table 68 lists the extended ISL modes for the 4/16 SAN Switch and 4/8 SAN Switch.
Table 68 4/16 SAN Switch and 4/8 SAN Switch extended ISL modes (Goldeneye ASIC)
1
Mode Buffer allocation
1 Gbit/sec 2 Gbit/sec
a
L0 3(17) 3(17)
LE 1 1 16
L0.5 18 31
L1 31 56
L2 56 106
2
LD Auto Auto
3
LS Based on a Based on a
user user
specified specified
distance distance
1. For each data channel (in this case there are 4) there are 3 credits, plus 5 extra credits.
2. The dynamic long-distance mode (LD) automatically configures the number of buffer credits required, based on the actual link distance.
3. The static long-distance mode (LS) allocates the number of buffer credits based on the user-specified distance.
Table 69 lists the extended ISL modes for switches that have a Condor ASIC.
Table 69 Extended ISL Modes: switches with Condor ASIC
Mode Buffer allocation
1 2
Gbit/sec Gbit/sec
1
L0 5 (26) 5 (26)
LE 1 1 16
L0.5 18 31
L1 31 56
L2 56 106
2
LD Auto Auto
3
LS Based on Based on
user-speci user-speci
fied fied
distance distance
1. For each data channel (in this case, there are 4) there are 5 credits, plus 6 extra credits.
2. The dynamic long-distance mode (LD) automatically configures the number of buffer credits required, based on the actual link distance.
3. The static long-distance mode (LS) allocates the number of buffer credits based on the user-specified distance.
Distance @
1 Gbit/sec
4
Gbit/sec
3(17) 6 km
26 10 km
56 25 km
106 50 km
n/a 100 km
Auto Auto
Based on Based on a
a user-specifi
user-speci ed
fied distance
distance
Maximum
is 293 km.
Distance @
1 Gbit/sec
4
Gbit/sec
5 (26) 10 km
26 10 km
56 25 km
106 50 km
206 100 km
Auto Auto
(Maximum
is 500km)
Based on Based on
user-speci user-specifie
fied d distance
distance
(maximum
is 500 km)
Distance Distance
@ 2 @ 4
Gbit/sec Gbit/sec
3 km 1.5 km
10 km 10 km
25 km 25 km
50 km 50 km
100 km n/a
Auto Auto
Based on Based on
a a
user-specifi user-specifi
ed ed
distance distance
Maximum Maximum
is 146 km. is 73 km.
Distance Distance
@ 2 @ 4
Gbit/sec Gbit/sec
5 km 2 km
10 km 10 km
25 km 25 km
50 km 50 km
100 km 100 km
Auto Auto
(Maximum (Maximum
is 250km) is 100km)
Based on Based on
user-specifi user-specifi
ed ed
distance distance
(maximum (maximum
is 250 km) is 100 km)
Fabric OS 5.2.x administrator guide 327
Earliest Fabric Extended
OS release Fabrics
license
required?
All No
v3.x, v4.x No
5.1.x Yes
5.1.x Yes
5.1.x Yes
5.1.x Yes
5.1.x Yes
Earliest Fabric Extended
OS release Fabrics
license
required?
All No
v3.x, v4.x No
v3.1.0, v4.1.0, Yes
v4.x, 5.x
All Yes
All Yes
v3.1.0, v4.1.0, Yes
v4.4.0, 5.x
(depending on
the model)
5.1.x Yes