[ns] some validation tests failed

[Chih-Fan Hsin <chsin@engin.umich.edu>]

After I installed ns-allinone-2.1b8a, I run ./validate.

However, I got these result.
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validate overall report: some tests failed:
./test-all-tcp ./test-all-testReno ./test-all-newreno ./test-all-sack
./test-all-tcpOptions ./test-all-tcpReset ./test-all-tcp-init-win
./test-all-tcpVariants ./test-all-aimd ./test-all-rfc793edu
./test-all-rfc2581 ./test-all-ecn ./test-all-ecn-ack ./test-all-ecn-full
./test-all-red ./test-all-red-pd ./test-all-rio ./test-all-cbq
./test-all-schedule ./test-all-webcache ./test-all-links
./test-all-oddBehavio
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Is it normal?

Thanks,
Charles