--> server name mammon:
mammon# portsnap fetch update
Looking up portsnap.FreeBSD.org mirrors... using portsnap1.FreeBSD.org.
Fetching snapshot tag... done.
Fetching snapshot metadata... done.
Updating from Tue Jan 30 10:58:20 SAST 2007 to Fri Feb  2 10:29:15 SAST 2007.
Fetching 4 metadata patches. done.
Applying metadata patches... done.
Fetching 4 metadata files...
gunzip: stdin: unexpected end of file

--> server name labs:
labs# portsnap fetch update
Looking up portsnap.FreeBSD.org mirrors... using portsnap2.FreeBSD.org
Fetching snapshot tag... done.
Fetching snapshot metadata... done.
Updating from Sun Jan 21 14:11:28 UTC 2007 to Fri Feb  2 08:29:15 UTC 2007.
Fetching 3 metadata patches.. done.
Applying metadata patches... done.
Fetching 3 metadata files...
gunzip: stdin: unexpected end of file
metadata is corrupt.