Setup Guide

ipv6_link_going_to_europe_centre
DellEMC(conf)# ip route 19.1.1.0/24 19.1.1.1 name This_link_goes_to_London_Central
To view the description for the IPv4 or IPv6 static routes, use the show running-config static command. Following is the sample
show running-config static output:
DellEMC#show running-config static
!
ipv6 route 1::/32 GigabitEthernet 2/3 11::1 name Stack-2
ipv6 route 2::/32 GigabitEthernet 2/48 11::1 name Stack-2
ip route 2.2.2.0/24 GigabitEthernet 2/47 name Stack-2
ipv6 route 1001:1001::/64 GigabitEthernet 1/42 2001:2001::1 name
ipv6_link_going_to_europe_centre
ip route 19.1.1.0/24 19.1.1.1 name This_link_goes_to_London_Central
ipv6 route 1500:1500::/96 2500:2500::1 name Under-Sea_Links_to_Asia-Pacific
ip route 50.50.1.32/30 Vlan 210 name AZ!#$_Link_to_Asia_$#
ip route 199.1.1.0 /24 vlan 100 name "Uplink To NewYork"
ip route 100.1.1.0/24 Vlan 100 name Any_Description_upto_32_characte
ip route 199.1.1.0/24 GigabitEthernet 1/41 name Added_Description_for_StaticRoute
NOTE: You can view the description of the congured static routes only using the show running-config static command.
Congure Static Routes for the Management
Interface
When an IP address that a protocol uses and a static management route exists for the same prex, the protocol route takes precedence
over the static management route.
To congure a static route for the management port, use the following command.
• Assign a static route to point to the management interface or forwarding router.
CONFIGURATION mode
management route ip-address mask {forwarding-router-address | ManagementEthernet slot/port}
Example of the show ip management-route Command
To view the congured static routes for the management port, use the show ip management-route command in EXEC privilege
mode.
DellEMC#show ip management-route
Destination Gateway State Route Source
----------- ------- ----- ------------
10.16.0.0/16 ManagementEthernet 1/1 Connected Connected
172.16.1.0/24 10.16.151.4 Active Static
IPv4 Path MTU Discovery Overview
The size of the packet that can be sent across each hop in the network path without being fragmented is called the path maximum
transmission unit (PMTU). This value might vary for the same route between two devices, mainly over a public network, depending on the
network load and speed, and it is not a consistent value. The MTU size can also be dierent for various types of trac sent from one host
to the same endpoint.
Path MTU discovery (PMTD) identies the path MTU value between the sender and the receiver, and uses the determined value to
transmit packets across the network. PMTD, as described in RFC 1191, denotes that the default byte size of an IP packet is 576. This
packet size is called the maximum transmission unit (MTU) for IPv4 frames. PMTD operates by containing the do not fragment (DF) bit set
in the IP headers of outgoing packets. When any device along the network path contains an MTU that is smaller than the size of the
packet that it receives, the device drops the packet and sends an Internet Control Message Protocol (ICMP) Fragmentation Needed (Type
3, Code 4) message with its MTU value to the source or the sending device. This message enables the source to identify that the
transmitted packet size must be reduced. The packet is retransmitted with a lower size than the previous value. This process is repeated in
an interactive way until the MTU of the transmitted packet is lower or equal to the MTU of the receiving device for it to obtain the packet
IPv4 Routing
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