【正文】 ork that are separated by sub boundaries. Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 53 高可用性 – 多 Controllers The consideration in distance of the LWAPP controllers from other LWAPP controllers in the mobility group, and the distance of the LWAPP controllers from the RAPs, is similar to the consideration of an LWAPP WLAN deployment in an enterprise. There are operational advantages to centralizing LWAPP controllers, and these advantages need to be traded off against the speed and capacity of the links to the LWAPP APs and the traffic profile of the WLAN clients using these APs. If the WLAN client traffic is expected to be focused on particular sites such as the Inter or a data center, centralizing the controllers at the same sites as these traffic focal points gives the operational advantages without sacrificing traffic efficiency. If the WLAN client traffic is more peertopeer, a distribute controller model may be a better fit。 it is likely that a majority of the WLAN traffic are clients in the area, with a smaller amount of traffic going to other locations. Given that many peertopeer applications can be sensitive to delay and packet loss, it is best to ensure that traffic between peers takes the most efficient path. Given that most deployments see a mix of client server traffic and peerto peer traffic, it is likely that a hybrid model of LWAPP controller placement is used, where points of presence (PoPs) are created with clusters of controllers placed in strategic locations in the work. In all cases, remember that the LWAPP model used in the wireless mesh work is designed for campus works。 that is, it expects a highspeed, lowlatency work between the LWAPP APs and the LWAPP controller. Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 54 Controller冗余設(shè)計之一 —N+1 NOC or Data Center WLAN ControllerBKP WLAN Controller1 WLAN Controller2 WLAN Controllern APs Configured with: Primary: WLANController1 Secondary: WLANControllerBKP APs Configured with: Primary: WLANController2 Secondary: WLANControllerBKP APs Configured with: Primary: WLANControllern Secondary: WLANControllerBKP Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 55 Controller冗余設(shè)計之二 —N+N APs Configured with: Primary: WLANControllerA Secondary: WLANControllerB WLAN ControllerA WLAN ControllerB APs Configured with: Primary: WLANControllerB Secondary: WLANControllerA Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 56 Controller冗余設(shè)計之三 —N+N+1 Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 57 安裝注意事項 Subtitle Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 58 部署注意事項 Site Location Survey most critical in project RF Base Station on top of High Story Building (eg: 19 Stories) City Owned Light Poles use for repeater Access Consider Photo Sensor Power Controlled Light Poles Power available to Pole assets (lights do not always’s have power to Photo Sensor and may be “bank switched”. Some poles did not even have Photo Sensor tap. Alternate mounting bracket options for possible mounting to Vertical poles (round/square) Battery Backup needs/UPS – Alpha technologies Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 59 安裝現(xiàn)場 Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 60 安裝現(xiàn)場 Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 61 全向天線的部署注意事項 Coverage No Coverage High gain omnidirectional antennas often have a very narrow vertical beamwidth Result: You may be able to municate with far away devices, but not those very close in as the downward signal is severely attenuated Solution 1: If you need to municate with near and far devices consider the use of a sector antenna Solution 2: Communicate with far devices via directional antennas and lower your omni antenna to municate with near devices Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 62 扇型天線部署 Coverage Very useful alternative to an omni antenna in point tomultipoint deployments with interference sources present Adjust sector antenna deployment to keep interferer out of main beam Utilize down tilt to maximize the signal energy in the desired coverage area Utilizing simple geometry and considering earth bulge put the upper edge of the main beam at the furthest desired site Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 63 接地和防雷 10 AWG or Larger Ground wire Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 64 供電 本地供電 Local AC Power Standard outlet plug 150 Ft. RJ45 3 Prong 15 Ft. Military Spec Connectors N. Amer Plug Airo Ether Outdoor Cable Airo AC Power Cord, 15 ft. N. Amer. Plug AIRETH1500150 Street Light outlet plug 3 Ft. Street Light Military Spec Outlet Plug Connector AIRCORD150015NA Not Certified Yet (EMI specs) Airo 1500 Street Light Power Tap, 105260 V AIRPWRSTLTTAP Presentation_ID 169。 2022 Cisco Systems, Inc. All rights reserved. Cisco Confidential 65 供電 – 通過以 太網(wǎng)通電 ? 48 VDC Power over Ether Output Modular RJ45 IEC C