ios: get_interfaces() last_flap - not implemented

Description of Issue/Question

Drivers do not have last_flap attribute calculated for get_interfaces(). I believe a good source of this would be the "last input / last output / last output hang" data that is seen via a show interface command typically. In fact it might make better sense to add these 3 values to the dictionary rather than try to leverage the single unimplemented last_flap attribute.

The new attributes could be parsed via a textfsm template with something like this. ^\s+Last\s+input\s+${LAST_INPUT},\s+output\s+${LAST_OUTPUT},\s+output\s+hang\s+${LAST_OUTPUT_HANG}\s*$$

the new proposed attributes could be:

• last_input
• last_output
• last_output_hang

These are valid for Cisco based devices, but i am not sure about non Cisco devices. If they are available, I would recommend this change across all drivers for consistency.

Did you follow the steps from https://github.com/napalm-automation/napalm#faq

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• Yes
• No

Setup

win10 python 3.7.2

napalm version

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napalm==2.4.0

Network operating system version

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n/a

Steps to Reproduce the Issue

always reproducible since the library has not implemented this feature yet.

Error Traceback

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