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Fabric OS Administrator’s Guide
453
53-1002446-01
Configuring an extended ISL
23
•
Static Long-Distance Mode (LS) - LS calculates a static number of BB credits based only on a
user-defined desired_distance value. LS mode also assumes that all FC payloads are 2112
bytes. Specify LS mode to configure a static long distance link with a fixed buffer allocation
greater than 10 km. Up to a total of 1452 full-size frame buffers are reserved for data traffic,
depending on the specified desired_distance value.
Configuring an extended ISL
Before configuring an extended ISL, ensure that the following conditions are met:
•
The ports on both ends of the ISL are operating at the same port speed, and can be configured
at the same distance level without compromising local switch performance.
NOTE
A long-distance link also can be configured to be part of a trunk group. Two or more
long-distance links in a port group form a trunk group when they are configured for the same
speed, the same distance level, and their link distances are nearly equal. For information on
trunking concepts and configurations, refer to
Chapter 22, “Managing Trunking Connections”
.
•
Only qualified Brocade SFPs are used. Only Brocade-branded or certain Brocade-qualified
SFPs are supported.
1. Connect to the switch and log in using an account assigned to the admin role.
2. Enter the switchDisable command.
3. Enter the configure command to set the switch fabric-wide configurations. You can set the
following fabric-wide settings:
(* = multiplication symbol)
4. For 8 Gbps platforms only, enter the portCfgFillword command to set ARB as the fill word.
portcfgfillword [
slot
/]
port
,
mode
The
mode
parameter in this command should be set to 3 if the
vc_translation_link_init
parameter in the portCfgLongDistance command (in the next step) is set to 1.
5. Enter the portCfgLongDistance command.
portcfglongdistance [
slot
/]
port
[
distance_level
] [
vc_translation_link_init
]
[
desired_distance
]
6. Repeat
step 5
and
step 4
for the remote extended ISL port. Both the local and remote
extended ISL ports must be configured to the same distance level. When the connection is
initiated, the fabric will reconfigure.
Field Type
Default
Range
Domain
Number
1
Varies
R_A_TOV
Number
10000
E_D_TOV * 2 to 120000
E_D_TOV
Number 2000
1000
to
R_A_TOV/2
WAN_TOV
Number 0
0
to
R_A_TOV/4
MAX_HOPS Number 7
7
to
19
Содержание Fabric OS v7.0.1
Страница 1: ...53 1002446 01 15 December 2011 Fabric OS Administrator s Guide Supporting Fabric OS v7 0 1 ...
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Страница 100: ...62 Fabric OS Administrator s Guide 53 1002446 01 Configuring FLOGI time handling of duplicate PWWN 3 ...
Страница 152: ...114 Fabric OS Administrator s Guide 53 1002446 01 The authentication model using RADIUS and LDAP 5 ...
Страница 214: ...176 Fabric OS Administrator s Guide 53 1002446 01 Management interface security 7 ...
Страница 228: ...190 Fabric OS Administrator s Guide 53 1002446 01 Brocade configuration form 8 ...
Страница 248: ...210 Fabric OS Administrator s Guide 53 1002446 01 Validating a firmware download 9 ...
Страница 334: ...296 Fabric OS Administrator s Guide 53 1002446 01 Setting up TI over FCR sample procedure 12 ...
Страница 360: ...322 Fabric OS Administrator s Guide 53 1002446 01 Encryption and compression example 14 ...
Страница 374: ...336 Fabric OS Administrator s Guide 53 1002446 01 Access Gateway N_Port failover with FA PWWN 16 ...
Страница 404: ...366 Fabric OS Administrator s Guide 53 1002446 01 ...
Страница 430: ...392 Fabric OS Administrator s Guide 53 1002446 01 Ports on Demand 18 ...
Страница 470: ...432 Fabric OS Administrator s Guide 53 1002446 01 Disabling QoS zone based traffic prioritization 21 ...
Страница 502: ...464 Fabric OS Administrator s Guide 53 1002446 01 Buffer credit recovery 23 ...
Страница 544: ...506 Fabric OS Administrator s Guide 53 1002446 01 Displaying the range of output ports connected to xlate domains 24 ...
Страница 554: ...516 Fabric OS Administrator s Guide 53 1002446 01 Fabric configurations for interconnectivity A ...
Страница 572: ...534 Fabric OS Administrator s Guide 53 1002446 01 Hexadecimal overview D ...
Страница 584: ...546 Fabric OS Administrator s Guide 53 1002446 01 ...