update tc example

dist/images/vpcnatgateway/nat-gateway.sh

@@ -248,15 +248,15 @@ function delete_tc_filter() {
     v4ip=$2
     direction=$3
 
-    # tc -p -s -d filter show dev net1 parent $qdisc_id prio 1 
-    # output like this:
-    # filter protocol ip u32 chain 0
-    # filter protocol ip u32 chain 0 fh 800: ht divisor 1
-    # filter protocol ip u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 *flowid :1 not_in_hw
-    # match IP dst x.x.x.1/32
-    # police 0x1 rate 1Mbit burst 1Mb mtu 2Kb action drop overhead 0b linklayer ethernet
-    #         ref 1 bind 1  installed 392 sec used 392 sec firstused 18818153 sec
-    # Sent 0 bytes 0 pkts (dropped 0, overlimits 0)
+    # tc -p -s -d filter show dev net1 parent $qdisc_id
+    # filter protocol ip pref 10 u32 chain 0
+    # filter protocol ip pref 10 u32 chain 0 fh 800: ht divisor 1
+    # filter protocol ip pref 10 u32 chain 0 fh 800::800 order 2048 key ht 800 bkt 0 *flowid :1 not_in_hw
+    #   match IP dst 172.18.11.2/32
+    #  police 0x1 rate 10Mbit burst 10Mb mtu 2Kb action drop overhead 0b linklayer ethernet
+    #         ref 1 bind 1  installed 47118 sec used 47118 sec firstused 18113444 sec
+
+    #  Sent 0 bytes 0 pkts (dropped 0, overlimits 0)
 
     # get the corresponding filterID by the EIP, and use the filterID to delete the corresponding filtering rule.
     ipList=$(tc -p -s -d filter show dev net1 parent $qdisc_id | grep "match IP " | awk '{print $4}')