There are typically two temperature sensors per line card. Where the sensors
are located varies from card to card, based on how the airflow is designed for
that particular card.
With the CLI command "show environment temperatures" you can read out the
measured temperature from both sensors. "Inlet" is generally a sensor very near
where the fans would be. On the ASR9010, this would be near the "bottom" of the
chassis where the fan trays are. It's generally a spot on the card that is
"upwind" of all the heat generating components. "Hotspot" is the exactly that:
it's the hottest spot on the linecard and again varies a lot depending on where
exactly the heat generating components are.
With XR 4.2.0 the ASR9000 is releasing a new line of hardware models. This amongst others is the RSP440, the next generation RSP with faster switch fabric along with Typhoon based Linecards, the next generation network processor.
The Cisco EPN system incorporates a network architecture designed to consolidate multiples services on a single Multiprotocol Label Switching (MPLS) transport network. This network is designed primarily based on...
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