關於Linux和Windows中的MTU
阿新 • • 發佈:2020-10-09
紅色為命令和註釋、修改後的MTU,藍色的為修改前的MTU
Linux中設定MTU值的三種方法:
[[email protected] ~]# ifconfig //檢視網絡卡資訊 eth0 Link encap:Ethernet HWaddr 00:0C:29:0C:B8:6A inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe0c:b86a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1948 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:208651 (203.7 KiB) TX bytes:17782 (17.3 KiB)
Interrupt:169 Base address:0x2000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:7442 errors:0 dropped:0 overruns:0 frame:0
TX packets:7442 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9177752 (8.7 MiB) TX bytes:9177752 (8.7 MiB)
第一種:
[[email protected] ~]# ifconfig eth0 mtu 1492
eth0 Link encap:Ethernet HWaddr 00:0C:29:0C:B8:6A
inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0
inet6 addr: fe80::20c:29ff:fe0c:b86a/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1492 Metric:1
RX packets:1948 errors:0 dropped:0 overruns:0 frame:0
TX packets:87 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:208651 (203.7 KiB) TX bytes:17782 (17.3 KiB)
Interrupt:169 Base address:0x2000
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:7442 errors:0 dropped:0 overruns:0 frame:0
TX packets:7442 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:9177752 (8.7 MiB) TX bytes:9177752 (8.7 MiB)
[[email protected] ~]#
第二種方法:
[[email protected] ~]# ip link list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
link/ether 00:0c:29:0c:b8:6a brd ff:ff:ff:ff:ff:ff
3: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
[[email protected] ~]# ip link set dev eth0 mtu 1492
[[email protected] ~]# ip link list
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 16436 qdisc noqueue
link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1492 qdisc pfifo_fast
qlen 1000
link/ether 00:0c:29:0c:b8:6a brd ff:ff:ff:ff:ff:ff
3: sit0: <NOARP> mtu 1480 qdisc noop
link/sit 0.0.0.0 brd 0.0.0.0
[[email protected] ~]#
第三種方法:
[[email protected] ~]# vi /etc/sysconfig/network-scripts/ifcfg-eth0
[[email protected] ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
BOOTPROTO=none
HWADDR=00:0C:29:0C:B8:6A
ONBOOT=yes
NETMASK=255.255.255.0
IPADDR=192.168.10.1
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
[[email protected] ~]# cat /etc/sysconfig/network-scripts/ifcfg-eth0
# Advanced Micro Devices [AMD] 79c970 [PCnet32 LANCE]
DEVICE=eth0
MTU=1492
BOOTPROTO=none
HWADDR=00:0C:29:0C:B8:6A
ONBOOT=yes
NETMASK=255.255.255.0
IPADDR=192.168.10.1
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
[[email protected] ~]#
最後重啟網路服務
[[email protected] ~]#service network restart eth0
Windows xp\vista\win 7中測試MTU 修改登錄檔中以下這項, HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services \Tcpip\Parameters\Interfaces\ 在這項下有幾個網絡卡資訊,你點選每個看右邊IPAddress項,對應自己網絡卡IP的就是的再輸入數值。 至於為什麼Windows中MTU是1492,是因為我的是ADSL撥號(pppoe)上網的,不是1492可能有些網頁無法遊覽。MTU最大值在乙太網幀中是1500位元組。
Linux中設定MTU值的三種方法:
[[email protected] ~]# ifconfig //檢視網絡卡資訊 eth0 Link encap:Ethernet HWaddr 00:0C:29:0C:B8:6A inet addr:192.168.10.1 Bcast:192.168.10.255 Mask:255.255.255.0 inet6 addr: fe80::20c:29ff:fe0c:b86a/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:1948 errors:0 dropped:0 overruns:0 frame:0
Windows xp\vista\win 7中測試MTU 修改登錄檔中以下這項, HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services \Tcpip\Parameters\Interfaces\ 在這項下有幾個網絡卡資訊,你點選每個看右邊IPAddress項,對應自己網絡卡IP的就是的再輸入數值。 至於為什麼Windows中MTU是1492,是因為我的是ADSL撥號(pppoe)上網的,不是1492可能有些網頁無法遊覽。MTU最大值在乙太網幀中是1500位元組。