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Fabric OS Administrator’s Guide
53-1002745-02
Top Talker monitors
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Top Talker monitors
Top Talker monitors determine the flows (SID and DID pairs) that are the major users of bandwidth
(after initial stabilization). Top Talker monitors measure bandwidth usage data in real time and
relative to the port on which the monitor is installed.
NOTE
Initial stabilization
is the time taken by a flow to reach the maximum bandwidth. This time varies
depending on the number of flows in the fabric and other factors. The incubation period can be up
to 14 seconds in the Backbones, and up to 82 seconds in the fixed-port switches.
Applications can use Top Talker monitors’ data to do the following:
•
Re-route the traffic through different ports that are less busy, so as not to overload a given
port.
•
Alert you to the top-talking flows on a port if the total traffic on the port exceeds the acceptable
bandwidth consumption.
You can use Top Talker monitors to identify the SID and DID pairs that consume the most
bandwidth and can then configure them with certain Quality of Service (QoS) attributes so they get
proper priority. Refer to
Chapter 21, “Optimizing Fabric Behavior,”
for information on QoS.
The Top Talker monitor is based on SID and DID pairs and not WWNs. Once Top Talker monitors are
installed on a switch or port, it remains installed across power cycles.
Top Talker monitors supports two modes, port mode and fabric mode:
•
Port mode Top Talker monitor
A Top Talker monitor can be installed on a port to measure the traffic originating from the port
and flowing to different destinations.
You can configure Top Talker monitors on F_Ports and, depending on the switch model, on
E_Ports. The following platforms support Top Talker monitors on E_Ports:
-
Brocade 6505
-
Brocade 6510
-
Brocade 6520
-
Brocade DCX 8510 family
•
Fabric mode Top Talker monitor
In fabric mode, Top Talker monitors are installed on all E_Ports in the fabric and measure the
data rate of all the possible flows in the fabric (ingress E_Port traffic only). In fabric mode, Top
Talker monitors can determine the top
n
bandwidth users on a given switch.
You can install Top Talker monitors in either port mode or fabric mode, but not both.
ATTENTION
A fabric mode Top Talker monitor and an EE monitor cannot be configured on the same fabric. You
must delete the EE monitor before you configure the fabric mode Top Talker monitor.
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Страница 116: ...116 Fabric OS Administrator s Guide 53 1002745 02 Inter switch links 4 FIGURE 7 Virtual channels on a QoS enabled ISL ...
Страница 132: ...132 Fabric OS Administrator s Guide 53 1002745 02 Frame Redirection 4 ...
Страница 194: ...194 Fabric OS Administrator s Guide 53 1002745 02 Ports and applications used by switches 6 ...
Страница 254: ...254 Fabric OS Administrator s Guide 53 1002745 02 Brocade configuration form 8 ...
Страница 274: ...274 Fabric OS Administrator s Guide 53 1002745 02 Validating a firmware download 9 ...
Страница 302: ...302 Fabric OS Administrator s Guide 53 1002745 02 Creating a logical fabric using XISLs 10 ...
Страница 344: ...344 Fabric OS Administrator s Guide 53 1002745 02 Concurrent zone transactions 11 ...
Страница 374: ...374 Fabric OS Administrator s Guide 53 1002745 02 Setting up TI over FCR sample procedure 12 ...
Страница 432: ...432 Fabric OS Administrator s Guide 53 1002745 02 Access Gateway N_Port failover with FA PWWN 16 ...
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Страница 490: ...490 Fabric OS Administrator s Guide 53 1002745 02 Ports on Demand 18 ...
Страница 498: ...498 Fabric OS Administrator s Guide 53 1002745 02 Supported topologies for ICL connections 19 ...
Страница 626: ...626 Fabric OS Administrator s Guide 53 1002745 02 Preparing a switch for FIPS B ...
Страница 630: ...630 Fabric OS Administrator s Guide 53 1002745 02 Hexadecimal Conversion C ...
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