Table 1 describes the default settings for IP performance optimization.
Parameter |
Default Setting |
|---|---|
Source IP address verification |
Disabled. |
Outgoing forwarding-plane IP packet fragmentation on an interface |
Disabled. |
Outgoing control-plane IP packet fragmentation |
Disabled. |
Load balancing mode for IP packet forwarding |
Flow-based load balancing mode. |
Processing for directed broadcast packets on an interface |
Not forwarding. |
IP error packet checking |
Enabled. |
Performing layer 2 forwarding for IP traffic during a ring network switchover |
Enabled. |
IPv4 Layer 3 unicast forwarding |
Enabled. |
Fast ICMP reply function |
Enabled. |
Discarding ICMP packets whose TTL values are 1 |
Disabled. |
Discarding ICMP packets that carry options |
Disabled. |
Discarding IP packets with expired TTL |
Disabled. |
Discarding IP packets matching no routing entry |
Enabled. |
Discarding ICMP Destination Unreachable packets |
Disabled. |
Discarding IPv6 packets with specified extension headers |
Disabled. |
Receiving ICMP packets |
Enabled. |
Sending ICMP Host Unreachable packets |
Enabled. |
Sending ICMP Port Unreachable packets |
Enabled. |
Sending ICMP Protocol Unreachable packets |
Enabled. |
Sending an ICMP Destination Unreachable packet to an initiator when a tracert packet matches an IPv4 blackhole route |
Disabled. |
Format of ICMP Time Exceeded packets |
ICMP Time Exceeded packets carry extension headers in compliant mode and original datagrams are of variable length. |
Sending ICMP Redirect packets |
Enabled. |
Sending ICMP Time Exceeded packets on an interface |
Enabled. |
TCP SYN-Wait timer |
75s. |
TCP FIN-Wait timer |
675s. |
Socket receive/send buffer size |
8k bytes. |
Minimum MSS value for a TCP connection |
216 bytes. |
Discarding IP Packets with invalid destination IP addresses and recording logs |
Disabled. |