Interfaces |
585
When you enter the
no
command, FTOS reduces the IP MTU value to 1536 bytes. On the
E-Series, to return the IP MTU value to the default, enter
no ip mtu
.
Link MTU and IP MTU considerations for port channels and VLANs are as follows.
port channels:
•
All members must have the same link MTU value and the same IP MTU value.
•
The port channel link MTU and IP MTU must be less than or equal to the link MTU and IP MTU
values configured on the channel members.
Example: if the members have a link MTU of 2100 and an IP MTU 2000, the port channel’s MTU
values cannot be higher than 2100 for link MTU or 2000 bytes for IP MTU.
VLANs:
•
All members of a VLAN must have same IP MTU value.
•
Members can have different Link MTU values. Tagged members must have a link MTU 4 bytes
higher than untagged members to account for the packet tag.
•
The VLAN link MTU and IP MTU must be less than or equal to the link MTU and IP MTU values
configured on the VLAN members.
Example
The VLAN contains tagged members with Link MTU of 1522 and IP MTU of 1500 and untagged
members with Link MTU of 1518 and IP MTU of 1500. The VLAN’s Link MTU cannot be higher
than 1518 bytes and its IP MTU cannot be higher than 1500 bytes.
negotiation auto
c e s
Enable auto-negotiation on an interface.
Syntax
negotiation auto
To disable auto-negotiation, enter
no negotiation auto
.
Defaults
Enabled.
Command Modes
INTERFACE
Command
History
Usage
Information
This command is supported on C-Series, S-Series, and E-Series (TeraScale and ExaScale) 10/100/1000
Base-T Ethernet interfaces.
Table 23-3. Difference between Link MTU and IP MTU
Layer 2 Overhead
Link MTU and IP MTU Delta
Ethernet (untagged)
18 bytes
VLAN Tag
22 bytes
Untagged Packet with VLAN-Stack Header
22 bytes
Tagged Packet with VLAN-Stack Header
26 bytes
Version 8.1.1.0
Introduced on E-Series ExaScale
Version 7.6.1.0
Introduced on S-Series
Version 7.5.1.0
Introduced on C-Series
pre-Version 6.2.1.0
Introduced for E-Series
Содержание Force10 TeraScale C Series
Страница 1: ...FTOS Command Line Reference Guide FTOS 8 4 2 7 E Series TeraScale C Series S Series S50 S25 ...
Страница 164: ...164 Control and Monitoring w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 176: ...176 802 1ag w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 188: ...188 802 3ah w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 204: ...204 802 1X w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 294: ...294 Access Control Lists ACL w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 428: ...428 Border Gateway Protocol IPv4 BGPv4 w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 456: ...456 Configuration Rollback w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 472: ...472 Dynamic Host Configuration Protocol DHCP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 484: ...484 Far End Failure Detection FEFD w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 682: ...682 IPv4 Routing w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 732: ...732 IPv6 Basics w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 896: ...896 Layer 2 w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 914: ...914 Link Layer Detection Protocol LLDP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 926: ...926 Multicast Listener Discovery MLD w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 952: ...952 Multiple Spanning Tree Protocol MSTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 976: ...976 Multicast w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 984: ...984 Neighbor Discovery Protocol NDP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1094: ...1094 Policy based Routing PBR w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1130: ...1130 PIM Sparse Mode PIM SM w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1164: ...1164 Private VLAN PVLAN w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1276: ...1276 Rapid Spanning Tree Protocol RSTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1342: ...1342 Service Provider Bridging w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1354: ...1354 sFlow w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1428: ...1428 Spanning Tree Protocol STP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1444: ...1444 Time and Network Time Protocol NTP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1464: ...1464 VLAN Stacking w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1494: ...1494 Virtual Router Redundancy Protocol VRRP w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1534: ...1534 C Series Diagnostics and Debugging w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1574: ...1574 E Series Debugging and Diagnostics w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1592: ...1592 S Series Debugging and Diagnostics w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1622: ...1622 Index w w w d e l l c o m s u p p o r t d e l l c o m ...
Страница 1640: ...1640 Command Index w w w d e l l c o m s u p p o r t d e l l c o m ...