H3C S12500 Series Configuration Manual
H3C S12500 Series Configuration Manual

H3C S12500 Series Configuration Manual

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H3C S12500-X Switch Series
TRILL Configuration Guide
Hangzhou H3C Technologies Co., Ltd.
http://www.h3c.com
Software version: R1003 and later
Document version: 6W101-20150515

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  • Page 1 H3C S12500-X Switch Series TRILL Configuration Guide Hangzhou H3C Technologies Co., Ltd. http://www.h3c.com Software version: R1003 and later Document version: 6W101-20150515...
  • Page 2 Copyright © 2014-2015, Hangzhou H3C Technologies Co., Ltd. and its licensors All rights reserved No part of this manual may be reproduced or transmitted in any form or by any means without prior written consent of Hangzhou H3C Technologies Co., Ltd.
  • Page 3 The H3C S12500-X documentation set includes 15 configuration guides. These guides describe the software features for the H3C S12500-X Switch Series and guide you through the software configuration procedures. These guides also provide configuration examples to help you apply software features to different network scenarios.
  • Page 4 Convention Description be entered 1 to n times. A line that starts with a pound (#) sign is comments. GUI conventions Convention Description Window names, button names, field names, and menu items are in Boldface. For Boldface example, the New User window appears; click OK. >...
  • Page 5 [Products & Solutions]—Provides information about products and technologies, as well as solutions. [Software Download]—Provides the documentation released with the software version. Technical support service@h3c.com http://www.h3c.com Documentation feedback You can e-mail your comments about product documentation to info@h3c.com. We appreciate your comments.
  • Page 6: Table Of Contents

    Contents Configuring TRILL ·························································································································································· 1   Overview ············································································································································································ 1   Basic concepts ·························································································································································· 1   TRILL frame formats ··················································································································································· 1   How TRILL works ······················································································································································· 3   TRILL forwarding mechanisms ································································································································· 3   Protocols and standards ·········································································································································· 4   Configuration restrictions and guidelines ······················································································································· 5  ...
  • Page 7: Configuring Trill

    Configuring TRILL Transparent Interconnect of Lots of Links (TRILL) uses IS-IS to provide transparent Layer 2 forwarding. Overview TRILL combines the simplicity and flexibility of Layer 2 switching with the stability, scalability, and rapid convergence capability of Layer 3 routing. All these advantages make TRILL very suitable for large flat Layer 2 networks in data centers.
  • Page 8 Figure 1 TRILL data frame format Table 1 describes the fields in the TRILL header. Table 1 TRILL header fields Field Description Ethertype The Ethertype is fixed to TRILL. Version number, which is 0. When an RB receives a TRILL frame, it checks the V field and drops the frame if the V field is not 0.
  • Page 9: How Trill Works

    How TRILL works TRILL establishes and maintains adjacencies between RBs by periodically advertising Hello frames, distributes LSPs among RB neighbors, and generates an LSDB for all RBs in the network. Based on the LSDB, each RB uses the SPF algorithm to calculate forwarding entries destined to other RBs. TRILL forwarding mechanisms Different types of frames are forwarded using different forwarding mechanisms.
  • Page 10: Protocols And Standards

    Multi-destination frame forwarding mechanism In a TRILL network, RBs perform the following operations: • Compute a TRILL distribution tree for each VLAN according to the LSDB. Use the TRILL distribution tree to guide the forwarding of multi-destination frames, which include •...
  • Page 11: Configuration Restrictions And Guidelines

    For more information about spanning tree protocols, see Layer 2—LAN Switching Configuration Guide. H3C recommends not enabling loop detection on TRILL ports, because TRILL networks prevent loops • from being generated. For more information about loopback detection, see Layer 2—LAN Switching Configuration Guide.
  • Page 12: Enabling Trill

    Tasks at a glance (Optional.) Configuring the link type of a TRILL port (Optional.) Configuring the DRB priority of a TRILL port (Optional.) Configuring the link cost for a TRILL port (Optional.) Configuring the announcing VLANs and designated VLAN (Optional.) Configuring TRILL timers (Optional.) Adjusting LSP parameters...
  • Page 13: Configuration Procedure

    Figure 4 Two TRILL neighbors are established for a port (1) RB 1 Traditional Ethernet switch RB 2 RB 3 TRILL enabled port Figure 5 Two TRILL neighbors are established for a port (2) Configuration procedure To enable TRILL: Step Command Remarks Enter system view.
  • Page 14: Configuring The Link Type Of A Trill Port

    the highest priority uses the nickname. When RBs have the same priority, the RB with the highest system ID uses the nickname. The system automatically assigns new nicknames to the other RBs. If you set a new different system ID for an RB, the system resets the TRILL process. To configure the system ID and nickname for an RB: Step Command...
  • Page 15: Configuring The Link Cost For A Trill Port

    Step Command Remarks Enter system view. system-view Enter Layer 2 Ethernet or interface interface-type aggregate interface interface-number view. Configure the DRB By default, the DRB priority of a TRILL port is trill drb-priority priority priority of a TRILL port. Configuring the link cost for a TRILL port The link cost of a TRILL port can be automatically calculated by the system or manually configured: When a link cost is manually configured, the manually configured link cost takes effect regardless •...
  • Page 16: Configuring Trill Timers

    The concepts and symbols used in this section are explained as follows: Enabled VLAN—VLAN enabled on the port. • Forwarding VLAN—VLANs for which an RBridge port is appointed VLAN forwarder on the port. • • ∩ and ∪—Set operation symbols. ∩ indicates set-theoretic intersection, and ∪ indicates set-theoretic union.
  • Page 17: Adjusting Lsp Parameters

    Step Command Remarks Enter system view. system-view Enter Layer 2 Ethernet interface interface-type or aggregate interface interface-number view. The default setting is 10 seconds. This command sets the Hello interval for the Configure the Hello trill timer hello interval RB. The Hello interval of the DRB is 1/3 of the interval.
  • Page 18: Adjusting The Spf Algorithm Parameters

    To adjust LSP-related parameters: Step Command Remarks Enter system view. system-view Enter TRILL view. trill Set the LSP maximum timer lsp-max-age time The default setting is 1200 seconds. age. Set the LSP refresh timer lsp-refresh time The default setting is 900 seconds. interval.
  • Page 19: Configuring The Trill Unicast Equal-Cost Routes

    Step Command Remarks Enter system view. system-view Enter TRILL view. trill By default, the maximum SFP calculation timer spf maximum-interval interval is 10 seconds, the minimum SPF Set the SPF calculation [ minimum-interval calculation interval is 10 milliseconds, and interval for TRILL. [ incremental-interval ] ] the SFP calculation incremental interval is 20 milliseconds.
  • Page 20 TRILL distribution trees support Equal Cost Multiple Path (ECMP), also known as multicast ECMP. When multicast ECMP is disabled, because the topologies of TRILL distribution trees are different, traffic can be load shared. However, equal-cost links are not used for load sharing. When N equal-cost links exist in the network, each TRILL distribution tree selects the link with the largest pseudo-node ID for forwarding packets.
  • Page 21: Enabling Logging Of Trill Neighbor Changes

    Enabling logging of TRILL neighbor changes Perform this task to output logs of TRILL neighbor changes to the configuration terminal. To enable logging of TRILL neighbor changes: Step Command Remarks Enter system view. system-view Enter TRILL view. trill Enable logging of TRILL By default, logging of TRILL neighbor changes log-peer-change enable neighbor changes.
  • Page 22: Configuring Trill Gr

    Configuring TRILL GR Graceful Restart (GR) ensures the continuity of packet forwarding when a protocol restarts or an active/standby switchover occurs. The device on which a protocol restarts or an active/standby switchover occurs advertises the restart status to the neighbors, and allows the neighbors to re-establish connections.
  • Page 23: Trill Configuration Example

    Task Command Display information about the TRILL display trill unicast-route [ nickname nickname ] [ verbose ] unicast routing table. Clear dynamic running statistics of reset trill the TRILL process. TRILL configuration example Network requirements As shown in Figure 7, configure TRILL in the Layer 2 data center network as follows: Enable TRILL on the downlink ports of access layer devices to connect terminal devices to the TRILL •...
  • Page 24: Configuration Procedure

    Configuration procedure This section provides only TRILL-related configurations. Configure the downlink ports of access layer devices: # Enable TRILL globally on RB 1, and enable TRILL on downlink port Ten-GigabitEthernet 1/0/1 of RB 1. <RB1> system-view [RB1] trill [RB1-trill] quit [RB1] interface ten-gigabitethernet 1/0/1 [RB1-Ten-GigabitEthernet1/0/1] trill enable [RB1-Ten-GigabitEthernet1/0/1] quit...
  • Page 25 [RB6-Ten-GigabitEthernet1/0/2] trill link-type trunk [RB6-Ten-GigabitEthernet1/0/2] quit [RB6] interface ten-gigabitethernet 1/0/3 [RB6-Ten-GigabitEthernet1/0/3] trill enable [RB6-Ten-GigabitEthernet1/0/3] trill link-type trunk [RB6-Ten-GigabitEthernet1/0/3] quit [RB6] interface ten-gigabitethernet 1/0/4 [RB6-Ten-GigabitEthernet1/0/4] trill enable [RB6-Ten-GigabitEthernet1/0/4] trill link-type trunk [RB6-Ten-GigabitEthernet1/0/4] quit [RB6] interface ten-gigabitethernet 1/0/5 [RB6-Ten-GigabitEthernet1/0/5] trill enable [RB6-Ten-GigabitEthernet1/0/5] trill link-type trunk [RB6-Ten-GigabitEthernet1/0/5] quit # Configure RB 7 through RB 9 in the same way RB 6 is configured.
  • Page 26: Verifying The Configuration

    [RB9] trill [RB9-trill] tree-root priority 65532 [RB9-trill] trees calculate 4 [RB9-trill] quit Verifying the configuration Suppose that the nicknames of RB 1 through RB 9 are 0x5801 through 0x5809, respectively. Use display trill unicast-route to display the TRILL unicast routing table. For example: # Display brief information about all entries in the TRILL unicast routing table on RB 1.
  • Page 27 Root: 0x5806 LocalRcvFlag: True List of VLANs: List of outgoing ports: XGE1/0/2...
  • Page 28: Index

    Index TRILL, distributing access TRILL distribution tree, TRILL access port link, adjusting TRILL port priority, TRILL LSP parameters, TRILL SPF algorithm parameters, algorithm enabling TRILL SPF algorithm parameter adjustment, TRILL, appointed VLAN-x forwarder. See AVF TRILL neighbor change logging, AVF (TRILL), format calculating TRILL control frame format,...
  • Page 29 TRILL port DRB priority, TRILL port link type, TRILL RB nickname, TRILL RB system ID, TRILL RB system ID, inhibition time (TRILL), TRILL routing bridge network, IS-IS TRILL SNMP configuration, TRILL configuration, 1, 5, TRILL SPF algorithm parameter adjustment, TRILL timer configuration, Layer 2 network management TRILL configuration, 1, 5,...
  • Page 30 displaying TRILL, equal-cost route configuration (unicast), enabling TRILL, feature compatibility restrictions, enabling TRILL neighbor change logging, forwarding mechanisms, maintaining TRILL, frame formats, protocols and standards frame forwarding (multi-destination), TRILL, frame forwarding (unicast), GR configuration, hardware restrictions, how it works, TRILL nickname, licensing requirements, TRILL system ID, LSP parameter adjustment,...

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