Cisco Switching/Routing :: X2-10GB-LR And Receive Power In 6500

May 1, 2012

We are having troubles getting a 10Gig interface to come up with a carrier... it shows down down.We are using X2-10GB-LR on a 6500 and SM fiber, distance to carrier hand off is about 90 feet.
 
According to: [URL]
The receiver power on a X2-10GB-LRis
Max
0.5       
Min
-14.4
 
Our carrier is sending at +5db. Currently the interface is down.
 
My question is; would the interface even come up if it is receiving a powerful signal?
 
Here is DOM output for our interface.

show interfaces transceiver detail
 
           Optical           High Alarm High Warn Low Warn   Low Alarm
           Transmit Power     Threshold   Threshold Threshold Threshold
Port       (dBm)             (dBm)       (dBm)     (dBm)     (dBm)
[Code]....

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Could I connect a WS-G5484 (4500) to X2-10GB-SR (6500)?These two transceivers modules have 850 wavelenght, so it should work right?

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Cisco Switching/Routing :: 6500 - Power-Redundancy Mode Combined And Power Fail

Feb 28, 2011

I have a 6500 chassis with 2 power supplies. At the moment  I am using the default configuration:
 
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"Power supply is removed withredundancy disabled
• System log and syslog messages are generated.
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We have two 6500s. One is running in power redundant mode and the other is running in combined mode.We need to change the one running in combined mode to redundant mode to ensure it can run ok on one supply if needed but I have a couple of questions.

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The following discussion is based on cisco cat 6500 switches with two power supplies: p1 and p2.  . Both power supplies are running in combined mode .Each power supplies is rated with 500 watts max( I just picked 500 watts for simplicity)Combined mode In combined mode, each power supply provides approximately 83% of its  capacity to the chassis. This allows for greater utilization of the  power supplies and potentially increased PoE densities
 
1) Let say  our specific 6500 switch's configuration requires 1000 watts. We have two power supplies p1 and p2 ,each with rated power of 500 watts.  Both power supplies must operate in combined mode.  Will power supplies be able to meet the total load power requirement of  1000 watts?
 
Here is my understanding :The maximum power delivered by each power supplies is 83 percent of its rated power, assuming power supplies are running in combined mode.
 
So Maximum power delivered by power supplies

=  83% of p1+ 83% of p2
=  83% of 500 + 83% of 500
= 415 +415
=830 watts

Thus the required load of 1000 watts can not be met by our power supplies in combined mode. 
 
2 )Suppose our switch's switch configuration needs 500 watts.  Again our power supplies each rated with 500 watts, are configured for combined mode. How much power is being delivered by each power supply?  Is it 83 percent of the total load i.e 500 watts?

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"
Information about VSL Topology  
#
A VSS contains two chassis that communicate using the VSL, which is a  special port group. Configure both of the 10-Gigabit Ethernet ports on  the supervisor engines as VSL ports.
"
 
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Wim Holemans
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swnxds01-enable# sh int eth1/3 transc details
Ethernet1/3(code)

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[Code]....

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Software
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Hostname#show power inlineAvailable:0.0(w)  Used:0.0(w)  Remaining:0.0(w)
Interface Admin  Oper       Power   Device              Class Max                            (Watts)--------- ------ ---------- ------- ------------------- ----- ----Fa0/1     auto   off        0.0     n/a                 n/a   15.4Fa0/2     auto   off        0.0     n/a                 n/a   15.4Fa0/3     auto   off        0.0     n/a                 n/a   15.4Fa0/4     auto   off        0.0     n/a                 n/a   15.4Fa0/5     auto   off        0.0     n/a                 n/a   15.4Fa0/6     auto   off        0.0     n/a                 n/a   15.4Fa0/7     auto   off        0.0     n/a                 n/a   15.4Fa0/8     auto   off        0.0     n/a                 n/a   15.4Fa0/9     auto   off        0.0     n/a                 n/a   15.4Fa0/10    auto   off        0.0     n/a                 n/a   15.4(code)

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