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u32 classifier to tcp header

Dear all,

I was have read through and try out some examples of using u32 filter


CBQ with u32 classifier

I set up
#Installing a u32 classifier for the traffic
#Creating hash table  to the port set..
./tc filter add dev eth0 parent 2:0 prio 3 u32 ht 1:6: match ip dst match tcp dst 0x177a 0xffff flowid 2:2

is the 0x177a (6010) refer to those number in /etc/services
if not where should I get those numbers?