lukasz.bromirski.net

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bored waiting for scp to complete?

if you, like me, get bored immediately after you execute copy scp x y, you’ll likely be happy to know that we’re introducing changes in the TCP/IP stack responsible for SCP operations.

in NX-OS beginning in 9.3(1), while copying using scp you can add use k-stack, like this:

nxos-switch#<span style="background-color: #FFFF00;">copy scp://192.168.0.1/nxos.bin bootflash: use-kstack</span>

in IOS-XE, starting from 17.2(1), it’s possible to achieve similar speed-up effect by enabling globally ip ssh bulk-mode. the same copy operation should speed up 4-5x over.

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