[c-nsp] Strange syslog message

[M Usman Ashraf]

Hi List,

Just saw a strange message on CISCO 7609,

5357: Aug 24 00:00:06.503 PKT: %LINEPROTO-5-UPDOWN: Line protocol on
Interface Container1048576, changed state to up

Can anybody confirm what this Interface Container is?

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Regards,

M Usman Ashraf