Jeff 加上了FELIX_IPINIPMTU,设置为"1380″,只有tun设备生效变成了1380,其它都是1500;最后我又restart docker,发现其它calico的网络设备依然是1500;如下:
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
4: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
5: kube-ipvs0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default
8: tunl0@NONE: <NOARP,UP,LOWER_UP> mtu 1380 qdisc noqueue state UNKNOWN group default qlen 1000
119: cali16bd9b6c47e@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
120: cali8748fb159e1@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
121: calif69e0a953fb@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
122: calif46057fc5bd@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
123: cali9259fab8917@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
126: nodelocaldns: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default
127: cali9e6f44d6a4b@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default
128: calic226914825f@if4: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default