what is the difference between bpdu guard and bpdu filter?
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As the name says, BPDU filter filters BPDUs in both directions. BPDU filter will prevent inbound and outbound BPDU but will remove portfast state on a port if a BPDU is received. ... On the other hand, BPDU Guard keeps an eye open for any BPDU's entering the interfaces that are enabled this feature.
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PortFast BPDU guard prevents loops by moving a nontrunking port into an errdisable state when a BPDU is received on that port. When you enable BPDU guard on the switch, spanning tree shuts down PortFast-configured interfaces that receive BPDUs instead of putting them into the spanning tree blocking state.
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There is absolutely NO difference between the Moen 1222 vs 1222B replacement cartridges. They are both the replacement part cartridge for the Posi Temp Moen shower valve. They are made from the same parts, the only difference is their packaging and model number. The "B" in the 1222B model number stands for Bulk.
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The only other difference between the two is the mounting system. The X300U-A uses the older style Rail-Lock® Mounting System. which is best suited for polymer framed handguns. The X300U-B uses the T-Slot Mounting Rail System which is best suited for metal framed handguns as well as AR-15 or similar style rails.
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Data Guard is a feature of the Oracle Database Enterprise Edition itself and does not require separate licensing. On the other hand, Active Data Guard is a so-called Oracle Database Enterprise Edition Option and as such requires separate licensing.
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Strainers can usually be installed in front of internal protection backflow preventers. Strainers will affect the flow of water into a piping system. ... There are backflow preventers that can be installed horizontally, vertically (up or down) and other orientations that can make an installation easier.
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There are a several types of filters, including: bag, screen, and magnetic. The bag filter consists of a cloth bag which the hydraulic fluid is pushed through, the contaminants (being solid) are unable to flow through the bag as well.
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ROA UV filter kills all the pathogens present in the water however, the dead bacteria remain suspended in the water. On the other hand, a RO water purifier kills the bacteria and also filters out their dead bodies floating in the water. Hence, RO purified water is more hygienic.
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Why Is a Backflow Preventer Needed? A backflow preventer (backflow valve) stops the movement of water from the garden hose into the water supply. Without a backflow preventer attached to the garden hose faucet line, there is the possibility of contaminants or chemicals entering the water supply.
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Bitdefender is the overall winner as it offers more security-enhancing features and utilities in its security products than Norton. Also, independent tests show that Bitdefender is better than Norton in terms of both malware detection and system performance.
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The difference between a UV and skylight filter is subtle but notable: UV filters have no color cast to them. Skylight filters have a faint orangish-pink color cast. So UV filters are simply clear glass - that's it. A skylight filter is just a UV filter dyed with a faint warm color tinge.
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The main difference between filtering and searching is that filtering operates on the current list of files and removes files from the display, whereas searching starts from the current location and builds a new list of files that match the supplied criteria.
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Multi-Stage Purification Process The Aquaguard Crystal NXT RO Plus UV Plus MTDS Water Purifier uses active copper technology which adds the goodness of copper in the water. The Chemi-block ensures that your water doesn't contain any harmful chemicals like chlorine or other organic impurities.
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UV / Haze and Skylight filters protect the surface of your lens against scratches, dust, moisture and fingerprints, which in the long term can harm the lens coatings. ... ND and Color Graduated filters darken or tint the top or bottom (or left and right) portion of the frame while leaving the opposite side untouched.
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All of the safety features and security systems are identical between the Reserve and Black Label trim packages. The main difference here is in the fact that the Black Label now includes every extra bell and whistle that were previously offered as options for the Reserve.
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What is the difference between a bypass and restrictor type flow control? Bypass type flow control: the inlet flow can pass across the flow regulating piston to the DCV and cylinder or across the bypass piston to the tank. Restrictor type flow control: can work in a meter-in, meter-out, or bleed off function.
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Root guard forces a port to be always designated as the root port. Loop guard is effective only if the port is a root port or an alternate port. You cannot enable loop guard and root guard on a port at the same time.