Administrator Guide

To replace a line card with a different card type, remove the card and then remove the existing line-card configuration for the slot using
the command no linecard slot-id provision.
Dell(conf)# no linecard 3 provision
If you do not remove the existing line-card configuration, the status of the newly installed line card displays as mismatch card type.
Dell# show linecard 5
-- Linecard 5 --
Status : type mismatch - mismatch card type
Next Boot : online
Required Type : C9000LC2410G - 24-port TE/GE
Current Type : C9000LC0640 - 6-port TE/FG
Hardware Rev : 4.0
Num Ports : 24
Up Time : 0 sec
Dell Networking OS Version : 1-0(0-4079)
Jumbo Capable : yes
POE Capable : Not supported
Max Required Power : 125
Boot Flash : 3.3.1.15
Boot Selector : 3.3.0.0g
Memory Size : 2127654912 bytes
Serial Number :
Part Number : 0CYFF2 Rev X00
Vendor Id :
Date Code :
Country Code :
Piece Part ID : CN-0CYFF2-77931-49G-0009
PPID Revision : X00
Service Tag : 14CRG02
Expr Svc Code : 244 008 288 2
Auto Reboot : enabled
Last Restart : powered-on
Burned In MAC : 34:17:eb:01:8c:00
No Of MACs : 3
Hitless Behavior
Hitless is a protocol-based system behavior in a dual-RPM chassis that is transparent to remote systems. In the event of a control-plane
failover, it is not necessary to notify the remote systems of a local state change.
Hitless protocols are compatible with other hitless and graceful restart protocols. A software or hardware exception may trigger hitless
failovers, or a forced failover using the command line interface (CLI).
For example, if you configure hitless open shortest path first (OSPF) over hitless the link aggregation control protocol (LACP) link
aggregation groups (LAGs), both features work seamlessly to deliver a hitless OSPF-LACP result. However, to achieve a hitless result, if
the hitless behavior involves multiple protocols, all protocols must be hitless. For example, if OSPF is hitless but bidirectional forwarding
detection (BFD) is not, OSPF operates in hitless mode and BFD flaps upon a control-plane failover.
The following protocols are hitless:
• 802.1X (802.1X)
• Bidirectional Forwarding Detection (Bidirectional Forwarding Detection (BFD))
• Internet Group Management Protocol (Internet Group Management Protocol (IGMP) and IGMP Snooping)
• Link aggregation control protocol (Link Aggregation Control Protocol (LACP))
• Link layer discovery protocol (Link Layer Discovery Protocol (LLDP))
• Spanning tree protocol (Spanning Tree Protocol (STP))
Graceful Restart
Graceful restart (also known as non-stop forwarding) is a protocol-based mechanism that preserves the forwarding table of the restarting
router and its neighbors for a specified period to minimize the loss of packets.
A graceful-restart router does not immediately assume that a neighbor is permanently down and so does not trigger a topology change.
Dell Networking OS supports graceful restart for the following protocols:
376
High Availability (HA)