Juniper Networks 300 Dual mode 2.4GHz / 5GHz Access Point User Manual Release Notes for MP access points

Juniper Networks, Inc. Dual mode 2.4GHz / 5GHz Access Point Release Notes for MP access points

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Manual Pt 3

Trapeze Network s, Inc.5753 W. Las Positas Blvd.Pleasanton, CA 94588Tel: +1 925-474-2200Fax: +1 925-251-0642Toll-Free: 877-FLY-TRPZ (877-359-8779) Part Number: 735-9502-0023, Revision AFor the most current version of this documentsee www.trapezenetworks.comRelease Notes for Trapeze Networks™ Mobility Point™ Access PointsDistributed MPs and Link AutonegotiationDescription The Ethernet interfaces on an MP are configured to autonegotiate the link speed (10 Mbps or 100 Mbps) and mode (half duplex or full duplex). The setting cannot be changed. A common setting on third-party switches is 100 Mbps, with full duplex. If you connect a Distributed MP to a port that is set for 100 Mbps with full duplex, the MP operates at 100 Mbps with half duplex. This results in an unusable link.Workaround Configure the port on the other device to autonegotiate.Distributed MPs and STPDescription A Distributed MP is a leaf device. You do not need to enable STP on the port that is directly connected to the MP. If Spanning Tree Protocol (STP) is enabled on the port that is directly connected to a Distributed MP, you might need to change the STP configuration on the port, to allow the MP to boot. Distributed MPs and Link Autonegotiation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Distributed MPs and STP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1MP-620 BNC Connector Is Not Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Power Over Ethernet Support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Note. STP on a port directly connected to a Distributed MP can prevent the MP from booting.
MP-620 BNC Connector Is Not UsedRelease Notes for Trapeze Networks™ Mobility Point™ Access Points2As part of the boot process, an MP disables and reenables the link on the port over which the MP is attempting to boot. If STP is enabled on the device that is directly connected to the port, the link state change can cause the port on the other device to leave the forwarding state and stop forwarding traffic. The port remains unable to forward traffic for the duration of the STP forwarding delay. An MP waits 30 seconds to receive a reply to its DHCP Discover message, then tries to boot using the other MP port. If the boot attempt fails on the other port also, the MP then reattempts to boot on the first port. The process continues until a boot attempt is successful. If STP prevents the other device’s port from forwarding traffic during each boot attempt, the MP repeatedly disables and reenables the link, causing STP to repeatedly stop the other device’s port from forwarding traffic. As a result, the boot attempt is never successful.Workaround To allow an MP to boot over a link that has STP enabled, do one of the following on the other device:zDisable STP on the other device’s port.zEnable the port fast convergence feature, if supported, on the other device’s port. (On some vendors’ devices, this feature is called PortFast.)zIf the other device is running Rapid Spanning Tree or Multiple Spanning Tree, set the port into edge port mode.MP-620 BNC Connector Is Not UsedThe MP-620 has a BNC connector located between the Ethernet port and the grounding point screw. (See Figure 1.) This port is not used in MSS Version 4.1.Figure 1. MP Access Point Model MP-620—Bottom ViewEthernet Port RSSI Connector with Protective CapGrounding Point Screw
Release Notes for Trapeze Networks™ Mobility Point™ Access Points3Power Over Ethernet SupportPower Over Ethernet SupportTrapeze Networks recommends that you budget for a minimum of 9 Watts of power draw per MP, for model MP-372. For an MP-620, budget for a maximum power draw of 30 Watts. For all other models, budget for a maximum power draw of 8 Watts per MP. Table 1 lists the Power over Ethernet (PoE) sources from which MPs can accept power. Table 2 lists the MP models that support 802.3af and the 802.3af classes of these models. Table 1. PoE Sources Supported By Trapeze MPsPoE Source Wire Pairs Used by PoE MP-3xxMP-52 MP-620 MP-2xxMP-1xxMX-20, MX-8, or MXR-2 Pairs unused for traffic Supported Not Supported SupportedPowerDsine 802.3af Pairs unused for traffic Supported Not Supported SupportedMP-620 PoE injector Pairs unused for traffic Not Supported Supported11. Use only the PoE injector that is shipped with the MP-620. Not SupportedCisco product with AF in product IDPairs also used for traffic (802.11af-compliant)Supported Not Supported Not SupportedCisco PoE blade with PWR in product ID22. If your Cisco product has V in the product ID, contact your vendor to determine whether the product is AF-compliant.Pairs also used for traffic (proprietary)Not Supported Not Supported Not SupportedCisco PoE injector (AIR-PWR-xxx)Pairs also used for traffic (proprietary)Not Supported Not Supported Not SupportedTable 2. MP Models that Support 802.3afMP Model MP-372 MP-620 MP-352MP-341MP-2xxMP-1xx MP-52802.3af Supported? Yes No Yes No Yes802.3af Class 3 Not Applicable 0 Not Applicable 0
© 2005 Trapeze Networks, Inc. All rights reserved. Trapeze Networks, the Trapeze Networks logo, the Trapeze Networks flyer icon, Mobility System, Mobility Exchange, MX, Mobility Point, MP, Mobility System Software, MSS, RingMaster, AAA Integration and RADIUS Scaling, ActiveScan, AIRS, Bonded Auth, FastRoaming, Granular Transmit Power Setting, GTPS, GuestPass, Layer 3 Path Preservation, Location Policy Rule, LPR, Mobility Domain, Mobility Profile, Passport-Free Roaming, SentryScan, Time-of-Day Access, TDA, TAPA, Trapeze Access Point Access Protocol, Virtual Private Group, VPG, Virtual Service Set, Virtual Site Survey and WebAAA are trademarks of Trapeze Networks, Inc. Trapeze Networks SafetyNet is a service mark of Trapeze Networks, Inc. All other products and services are trademarks, registered trademarks, service marks or registered service marks of their respective owners. 4Power Over Ethernet Support

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