User manual 3COM LS-3100-52P-OVS-H3

[. . . ] H3C S5500-EI Series Ethernet Switches Operation Manual Hangzhou H3C Technologies Co. , Ltd. http://www. h3c. com Manual Version: 20090108-C-1. 01 Product Version: Release 2202 Copyright © 2008-2009, 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. Trademarks H3C, , Aolynk, , H3Care, , TOP G, , IRF, NetPilot, Neocean, NeoVTL, SecPro, SecPoint, SecEngine, SecPath, Comware, Secware, Storware, NQA, VVG, V2G, VnG, PSPT, XGbus, N-Bus, TiGem, InnoVision and HUASAN are trademarks of Hangzhou H3C Technologies Co. , Ltd. All other trademarks that may be mentioned in this manual are the property of their respective owners. Notice The information in this document is subject to change without notice. [. . . ] Upon receiving this message, the DR stops sending register messages encapsulated with multicast data and starts a register-stop timer. When the register-stop timer expires, the DR sends a null register message (a register message without encapsulated multicast data) to the RP. If the DR receives a register-stop message during the register probe time, it will reset its register-stop timer; otherwise, the DR starts sending register messages with encapsulated data again when the register-stop timer expires. The register-stop timer is set to a random value chosen uniformly from the interval (0. 5 times register_suppression_time, 1. 5 times register_suppression_time) minus register_probe_time. Configure a filtering rule for register messages on all C-RP routers and configure them to calculate the checksum based on the entire register messages. Configure the register suppression time and the register probe time on all routers that may become source-side DRs. Follow these steps to configure register-related parameters: 1-26 To do. . . Enter system view Enter PIM view Configure a filtering rule for register messages Use the command. . . system-view pim register-policy acl-number -- -- Optional Remarks No register filtering rule by default Optional Configure the device to calculate the checksum based on the entire register messages Configure the register suppression time Configure the register probe time register-whole-checksum By default, the checksum is calculated based on the header of register messages Optional 60 seconds by default Optional 5 seconds by default register-suppression-timeou t interval probe-interval interval Disabling SPT Switchover If an S5500-EI series routing switch acts as an RP or the receiver-side DR, it initiates an SPT switchover process (by default) upon receiving the first multicast packet along the RPT. You can disable the switchover from RPT to SPT. Perform the following operations to disable the SPT switchover: To do. . . Enter system view Enter PIM view Use the command. . . system-view pim spt-switch-threshold infinity [ group-policy acl-number [ order order-value] ] -- -- Optional Apply the ACL for initiating an SPT switchover By default, the device switches to the SPT immediately after it receives the first multicast packet. Remarks Configuring PIM-SSM The PIM-SSM model needs the support of IGMPv3. Therefore, be sure to enable IGMPv3 on PIM routers with multicast receivers. PIM-SSM Configuration Task List Complete these tasks to configure PIM-SSM: 1-27 Task Enabling PIM-SM Configuring the SSM Group Range Configuring PIM Common Features Required Optional Optional Remarks Configuration Prerequisites Before configuring PIM-SSM, complete the following task: Configure any unicast routing protocol so that all devices in the domain are interoperable at the network layer. Before configuring PIM-SSM, prepare the following data: The SSM group range Enabling PIM-SM The SSM model is implemented based on some subsets of PIM-SM. Therefore, a router is PIM-SSM capable after you enable PIM-SM on it. When deploying a PIM-SM domain, you are recommended to enable PIM-SM on non-border interfaces of the routers. Follow these steps to enable PIM-SM globally To do. . . Enter system view Enable IP multicast routing Enter interface view Enable PIM-SM Use the command. . . system-view multicast routing-enable interface interface-type interface-number pim sm -- Required Disable by default -- Required Disabled by default Remarks All the interfaces on the same device must work in the same PIM mode. For details about the multicast routing-enable command, see Multicast Routing and Forwarding Commands in the IP Multicast Volume. 1-28 Configuring the SSM Group Range As for whether the information from a multicast source is delivered to the receivers based on the PIM-SSM model or the PIM-SM model, this depends on whether the group address in the (S, G) channel subscribed by the receivers falls in the SSM group range. All PIM-SM-enabled interfaces assume that multicast groups within this address range are using the PIM-SSM model. [. . . ] Therefore, a distributed device corresponds to multiple nodes. Therefore, in actual application, IPC is mainly applied on an IRF or distributed device; it provides a reliable transmission mechanism between different devices and boards. Link An IPC link is a connection between any two IPC nodes. There is one and only one link between any two nodes for packet sending and receiving. IPC links are created when the system is initialized: When a node starts up, it sends handshake packets to other nodes; a connection is established between them if the handshake succeeds. [. . . ]