D-Link DXS-3600-EM-8T CLI Guide - Page 449
ip mtu, ip ecmp load-balance
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DXS-3600 Series 10GbE Layer 2/3 Switch CLI Reference Guide 46-4 ip mtu This command is used to set the Maximum Transmission Unit (MTU) size of IP packets sent on an interface. Use the no form of this command to restore to the default setting. ip mtu bytes no ip mtu Parameters bytes Specifies the Maximum Transmission Unit of an IP packet. The value range is 5121712. Default Command Mode Command Default Level Usage Guideline The default value of IP MTU is 1500 Interface Configuration Mode. Level: 8 If an outgoing IP packet from CPU interface exceeds the MTU set for the interface, software will fragment it before sending out. Note: Changing the MTU value (with the jumbo frame command) won't affect the IP MTU value, vice verse is same. Therefore you should care both MTU and IP MTU sizes to make the system working correctly. For example, if IP MTU is larger than MTU at the egress port, the packet larger than MTU but less than IP MTU may be dropped by the egress port. Use show ip interface to see the current setting of IP MTU Example This example shows how to set the IP MTU of interface 'vlan1' to 800 bytes. DXS-3600-32S#configure terminal DXS-3600-32S(config)#interface vlan 1 DXS-3600-32S(config-if)#ip mtu 800 DXS-3600-32S(config-if)# 46-5 ip ecmp load-balance This command is used to set the load-balancing algorithm for ECMP/WCMP route. Use no form of this command to remove the configuration set before. ip ecmp load-balance [{sip | crc32_lower | crc32_upper} | dip | port](1) no ip ecmp load-balance [{sip | crc32_lower | crc32_upper} | dip | port] Parameters sip crc32_lower crc32_upper dip port (Optional) Specifies that the load-balancing algorithm will include the lower 5 bits of the source IP address. This attribution is mutually exclusive with crc32_lower and crc32_upper. If it is set, crc32_lower and crc32_upper will be excluded. (Optional) Specifies that the load-balancing algorithm will include the lower 5 bits of the CRC. This attribution is mutually exclusive with crc32_upper and sip. If it is set, crc32_upper and sip will be excluded. (Optional) Specifies that the load-balancing algorithm will include the upper 5 bits of the CRC. This attribution is mutually exclusive with crc32_lower and sip. If it is set, crc32_lower and sip will be excluded. (Optional) Specifies that the load-balancing algorithm will include the destination IP address. (Optional) Specifies that the load-balancing algorithm will include the TCP or UDP port. 441
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